chore: remove java 7 units check (#707)

Source-Author: Neenu Shaji <Neenu1995@users.noreply.github.com>
Source-Date: Wed Jul 28 18:18:26 2021 -0400
Source-Repo: googleapis/synthtool
Source-Sha: 1a2878d6909dd10ca4e3c1b5943d6622e996054e
Source-Link: googleapis/synthtool@1a2878d

.github/workflows/ci.yaml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        java: [7, 8, 11]
+        java: [8, 11]
     steps:
     - uses: actions/checkout@v2
     - uses: actions/setup-java@v1

synth.metadata

@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/java-firestore.git",
-        "sha": "0a10dd85de02647a9d08f41d45ebc25ee2689a52"
+        "sha": "a35091eacf04b20be6b820cecab3d87319bf1760"
       }
     },
     {
@@ -19,7 +19,7 @@
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "5d3c52f5db664eee9026db76b5bcb466f3a09ca9"
+        "sha": "1a2878d6909dd10ca4e3c1b5943d6622e996054e"
       }
     }
   ],