feat(domains)!: update the API

BREAKING CHANGE: This release has breaking changes.
#### domains:v1alpha2
The following keys were deleted:
- schemas.Binding.properties.bindingId.type

discovery/domains-v1alpha2.json

@@ -721,7 +721,7 @@
       }
     }
   },
-  "revision": "20201029",
+  "revision": "20201110",
   "rootUrl": "https://domains.googleapis.com/",
   "schemas": {
     "AuditConfig": {
@@ -787,9 +787,6 @@
       "description": "Associates `members` with a `role`.",
       "id": "Binding",
       "properties": {
-        "bindingId": {
-          "type": "string"
-        },
         "condition": {
           "$ref": "Expr",
           "description": "The condition that is associated with this binding. If the condition evaluates to `true`, then this binding applies to the current request. If the condition evaluates to `false`, then this binding does not apply to the current request. However, a different role binding might grant the same role to one or more of the members in this binding. To learn which resources support conditions in their IAM policies, see the [IAM documentation](https://cloud.google.com/iam/help/conditions/resource-policies)."

src/apis/domains/v1alpha2.ts

@@ -162,7 +162,6 @@ export namespace domains_v1alpha2 {
    * Associates `members` with a `role`.
    */
   export interface Schema$Binding {
-    bindingId?: string | null;
     /**
      * The condition that is associated with this binding. If the condition evaluates to `true`, then this binding applies to the current request. If the condition evaluates to `false`, then this binding does not apply to the current request. However, a different role binding might grant the same role to one or more of the members in this binding. To learn which resources support conditions in their IAM policies, see the [IAM documentation](https://cloud.google.com/iam/help/conditions/resource-policies).
      */