chore!: enable gapicv2 for monitoring/v3 API

This introduces the following breakages upon code regeneration, which are due to the `TimeSeriesQueryLanguageCondition` type being removed from `alert.proto` in a preceding change.

```
[ERROR] 6011: com.google.monitoring.v3.AlertPolicy$Condition: Field CONDITION_TIME_SERIES_QUERY_LANGUAGE_FIELD_NUMBER has been removed, but it was previously a constant
[ERROR] 7002: com.google.monitoring.v3.AlertPolicy$Condition: Method 'public com.google.monitoring.v3.AlertPolicy$Condition$TimeSeriesQueryLanguageCondition getConditionTimeSeriesQueryLanguage()' has been removed
[ERROR] 7002: com.google.monitoring.v3.AlertPolicy$Condition: Method 'public com.google.monitoring.v3.AlertPolicy$Condition$TimeSeriesQueryLanguageConditionOrBuilder getConditionTimeSeriesQueryLanguageOrBuilder()' has been removed
[ERROR] 7002: com.google.monitoring.v3.AlertPolicy$Condition: Method 'public boolean hasConditionTimeSeriesQueryLanguage()' has been removed
[ERROR] 7002: com.google.monitoring.v3.AlertPolicy$Condition$Builder: Method 'public com.google.monitoring.v3.AlertPolicy$Condition$Builder clearConditionTimeSeriesQueryLanguage()' has been removed
[ERROR] 7002: com.google.monitoring.v3.AlertPolicy$Condition$Builder: Method 'public com.google.monitoring.v3.AlertPolicy$Condition$TimeSeriesQueryLanguageCondition getConditionTimeSeriesQueryLanguage()' has been removed
[ERROR] 7002: com.google.monitoring.v3.AlertPolicy$Condition$Builder: Method 'public com.google.monitoring.v3.AlertPolicy$Condition$TimeSeriesQueryLanguageCondition$Builder getConditionTimeSeriesQueryLanguageBuilder()' has been removed
[ERROR] 7002: com.google.monitoring.v3.AlertPolicy$Condition$Builder: Method 'public com.google.monitoring.v3.AlertPolicy$Condition$TimeSeriesQueryLanguageConditionOrBuilder getConditionTimeSeriesQueryLanguageOrBuilder()' has been removed
[ERROR] 7002: com.google.monitoring.v3.AlertPolicy$Condition$Builder: Method 'public boolean hasConditionTimeSeriesQueryLanguage()' has been removed
[ERROR] 7002: com.google.monitoring.v3.AlertPolicy$Condition$Builder: Method 'public com.google.monitoring.v3.AlertPolicy$Condition$Builder mergeConditionTimeSeriesQueryLanguage(com.google.monitoring.v3.AlertPolicy$Condition$TimeSeriesQueryLanguageCondition)' has been removed
[ERROR] 7002: com.google.monitoring.v3.AlertPolicy$Condition$Builder: Method 'public com.google.monitoring.v3.AlertPolicy$Condition$Builder setConditionTimeSeriesQueryLanguage(com.google.monitoring.v3.AlertPolicy$Condition$TimeSeriesQueryLanguageCondition)' has been removed
[ERROR] 7002: com.google.monitoring.v3.AlertPolicy$Condition$Builder: Method 'public com.google.monitoring.v3.AlertPolicy$Condition$Builder setConditionTimeSeriesQueryLanguage(com.google.monitoring.v3.AlertPolicy$Condition$TimeSeriesQueryLanguageCondition$Builder)' has been removed
[ERROR] 6001: com.google.monitoring.v3.AlertPolicy$Condition$ConditionCase: Removed field CONDITION_TIME_SERIES_QUERY_LANGUAGE
[ERROR] 8001: com.google.monitoring.v3.AlertPolicy$Condition$TimeSeriesQueryLanguageCondition: Class com.google.monitoring.v3.AlertPolicy$Condition$TimeSeriesQueryLanguageCondition removed
[ERROR] 8001: com.google.monitoring.v3.AlertPolicy$Condition$TimeSeriesQueryLanguageCondition$Builder: Class com.google.monitoring.v3.AlertPolicy$Condition$TimeSeriesQueryLanguageCondition$Builder removed
[ERROR] 8001: com.google.monitoring.v3.AlertPolicy$Condition$TimeSeriesQueryLanguageConditionOrBuilder: Class com.google.monitoring.v3.AlertPolicy$Condition$TimeSeriesQueryLanguageConditionOrBuilder removed
[ERROR] 7002: com.google.monitoring.v3.AlertPolicy$ConditionOrBuilder: Method 'public com.google.monitoring.v3.AlertPolicy$Condition$TimeSeriesQueryLanguageCondition getConditionTimeSeriesQueryLanguage()' has been removed
[ERROR] 7002: com.google.monitoring.v3.AlertPolicy$ConditionOrBuilder: Method 'public com.google.monitoring.v3.AlertPolicy$Condition$TimeSeriesQueryLanguageConditionOrBuilder getConditionTimeSeriesQueryLanguageOrBuilder()' has been removed
[ERROR] 7002: com.google.monitoring.v3.AlertPolicy$ConditionOrBuilder: Method 'public boolean hasConditionTimeSeriesQueryLanguage()' has been removed
```

Committer: @miraleung
PiperOrigin-RevId: 311581003

Source-Author: Google APIs <noreply@google.com>
Source-Date: Thu May 14 12:13:51 2020 -0700
Source-Repo: googleapis/googleapis
Source-Sha: 123873dc7e2be35252d172205f67a375e70e9747
Source-Link: googleapis/googleapis@123873d

google-cloud-monitoring/src/main/java/com/google/cloud/monitoring/v3/AlertPolicyServiceSettings.java

@@ -56,16 +56,16 @@
  * <p>The builder of this class is recursive, so contained classes are themselves builders. When
  * build() is called, the tree of builders is called to create the complete settings object.
  *
- * <p>For example, to set the total timeout of getAlertPolicy to 30 seconds:
+ * <p>For example, to set the total timeout of deleteAlertPolicy to 30 seconds:
  *
  * <pre>
  * <code>
  * AlertPolicyServiceSettings.Builder alertPolicyServiceSettingsBuilder =
  *     AlertPolicyServiceSettings.newBuilder();
  * alertPolicyServiceSettingsBuilder
- *     .getAlertPolicySettings()
+ *     .deleteAlertPolicySettings()
  *     .setRetrySettings(
- *         alertPolicyServiceSettingsBuilder.getAlertPolicySettings().getRetrySettings().toBuilder()
+ *         alertPolicyServiceSettingsBuilder.deleteAlertPolicySettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * AlertPolicyServiceSettings alertPolicyServiceSettings = alertPolicyServiceSettingsBuilder.build();
@@ -74,6 +74,11 @@
  */
 @Generated("by gapic-generator")
 public class AlertPolicyServiceSettings extends ClientSettings<AlertPolicyServiceSettings> {
+  /** Returns the object with the settings used for calls to deleteAlertPolicy. */
+  public UnaryCallSettings<DeleteAlertPolicyRequest, Empty> deleteAlertPolicySettings() {
+    return ((AlertPolicyServiceStubSettings) getStubSettings()).deleteAlertPolicySettings();
+  }
+
   /** Returns the object with the settings used for calls to listAlertPolicies. */
   public PagedCallSettings<
           ListAlertPoliciesRequest, ListAlertPoliciesResponse, ListAlertPoliciesPagedResponse>
@@ -91,11 +96,6 @@ public UnaryCallSettings<CreateAlertPolicyRequest, AlertPolicy> createAlertPolic
     return ((AlertPolicyServiceStubSettings) getStubSettings()).createAlertPolicySettings();
   }
 
-  /** Returns the object with the settings used for calls to deleteAlertPolicy. */
-  public UnaryCallSettings<DeleteAlertPolicyRequest, Empty> deleteAlertPolicySettings() {
-    return ((AlertPolicyServiceStubSettings) getStubSettings()).deleteAlertPolicySettings();
-  }
-
   /** Returns the object with the settings used for calls to updateAlertPolicy. */
   public UnaryCallSettings<UpdateAlertPolicyRequest, AlertPolicy> updateAlertPolicySettings() {
     return ((AlertPolicyServiceStubSettings) getStubSettings()).updateAlertPolicySettings();
@@ -198,6 +198,11 @@ public Builder applyToAllUnaryMethods(
       return this;
     }
 
+    /** Returns the builder for the settings used for calls to deleteAlertPolicy. */
+    public UnaryCallSettings.Builder<DeleteAlertPolicyRequest, Empty> deleteAlertPolicySettings() {
+      return getStubSettingsBuilder().deleteAlertPolicySettings();
+    }
+
     /** Returns the builder for the settings used for calls to listAlertPolicies. */
     public PagedCallSettings.Builder<
             ListAlertPoliciesRequest, ListAlertPoliciesResponse, ListAlertPoliciesPagedResponse>
@@ -216,11 +221,6 @@ public UnaryCallSettings.Builder<GetAlertPolicyRequest, AlertPolicy> getAlertPol
       return getStubSettingsBuilder().createAlertPolicySettings();
     }
 
-    /** Returns the builder for the settings used for calls to deleteAlertPolicy. */
-    public UnaryCallSettings.Builder<DeleteAlertPolicyRequest, Empty> deleteAlertPolicySettings() {
-      return getStubSettingsBuilder().deleteAlertPolicySettings();
-    }
-
     /** Returns the builder for the settings used for calls to updateAlertPolicy. */
     public UnaryCallSettings.Builder<UpdateAlertPolicyRequest, AlertPolicy>
         updateAlertPolicySettings() {