chore: Fix pre-commit. (#1294)

.githooks/pre-commit

@@ -118,7 +118,7 @@ fi
 if [ $NUM_JAVA_FILES_CHANGED -gt 0 ] || [ $NUM_UNIT_GOLDEN_FILES_CHANGED -gt 0 ]
 then
   echo_status "Checking unit tests..."
-  mvn test
+  mvn install --batch-mode --no-transfer-progress -Dcheckstyle.skip -Dfmt.skip
   TEST_STATUS=$?
   if [ $TEST_STATUS != 0 ]
   then
@@ -133,7 +133,7 @@ if [ $NUM_JAVA_FILES_CHANGED -gt 0 ] \
   || [ $NUM_INTEGRATION_BAZEL_FILES_CHANGED -gt 0 ]
 then
   echo_status "Checking integration tests..."
-  bazel --batch test --disk_cache="$BAZEL_CACHE_DIR" //test/integration/...
+  bazelisk --batch test --disk_cache="$BAZEL_CACHE_DIR" //test/integration/...
   TEST_STATUS=$?
   if [ $TEST_STATUS != 0 ]
   then

DEVELOPMENT.md

@@ -11,15 +11,6 @@
     ```sh
     cp .githooks/pre-commit .git/hooks/pre-commit
     ```
-
-    ### Note: You may see this error with the pre-commits due to the monorepo migration:
-    ```
-    [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.10.1:compile (default-compile) on project gapic-generator-java: Compilation failure: Compilation failure: 
-    [ERROR] gapic-generator-java/gapic-generator-java/src/main/java/com/google/api/generator/gapic/composer/rest/ServiceClientTestClassComposer.java:[19,43] package com.google.api.gax.httpjson.testing does not exist
-    [ERROR] gapic-generator-java/gapic-generator-java/src/main/java/com/google/api/generator/gapic/composer/rest/ServiceClientTestClassComposer.java:[24,38] package com.google.api.gax.rpc.testing does not exist
-    [ERROR] gapic-generator-java/gapic-generator-java/src/main/java/com/google/api/generator/gapic/composer/grpc/ServiceClientTestClassComposer.java:[18,39] package com.google.api.gax.grpc.testing does not exist
-    ```
-    Remove the pre-commit hooks. Tracking the issue in https://github.com/googleapis/gapic-generator-java/issues/1253
 
 3. Install [`bazelisk`](https://github.com/bazelbuild/bazelisk) in your `PATH`.