chore(ci): remove legacy generate test

cloudbuild-test.yaml

@@ -16,7 +16,8 @@
 # Reduce this timeout by moving the installation of Python runtimes to a separate base image
 timeout: 7200s  # 2 hours for the first uncached run, can be lowered later.
 steps:
-  # Step 1: Build the generator image using Kaniko and push it to the registry.
+  # Build the generator image using Kaniko and push it to the registry as a
+  # verification that the image builds successfully.
   - name: 'gcr.io/kaniko-project/executor:latest'
     id: 'build-generator'
     args:
@@ -31,52 +32,6 @@ steps:
       # Sets a time-to-live for cache layers
       - '--cache-ttl=24h'
 
-  # Step 2: Clone the googleapis repository into the workspace.
-  # This runs in parallel with the image build.
-  - name: 'gcr.io/cloud-builders/git'
-    id: 'clone-googleapis'
-    args: ['clone', '--depth', '1', 'https://github.com/googleapis/googleapis.git', '/workspace/googleapis']
-    waitFor: ['-']
-
-  # Step 3: Run the generator to generate the library code.
-  - name: 'gcr.io/cloud-builders/docker'
-    id: 'generate-library'
-    args:
-      - 'run'
-      - '--rm'
-      # Mount the cloned googleapis repo from the workspace.
-      - '-v'
-      - '/workspace/googleapis:/app/source'
-      # Mount the generator-input from this repo's workspace.
-      - '-v'
-      - '/workspace/.librarian/generator-input:/app/input'
-      # Mount the test-resources/librarian from this repo's workspace as the librarian dir.
-      - '-v'
-      - '/workspace/.generator/test-resources/librarian:/app/librarian'
-      # The image that was built in the first step.
-      - 'gcr.io/$PROJECT_ID/python-librarian-generator:latest'
-      # The command to execute inside the container.
-      - 'generate'
-    waitFor: ['build-generator', 'clone-googleapis']
-
-  # Step 4: Run the generator to test the library code.
-  - name: 'gcr.io/cloud-builders/docker'
-    id: 'build-library'
-    waitFor: ['generate-library']
-    args:
-      - 'run'
-      - '--rm'
-      # Mount the test-resources/librarian from this repo's workspace as the librarian dir.
-      - '-v'
-      - '/workspace/.generator/test-resources/librarian:/app/librarian'
-      # We run the `build` command against the checked in google-cloud-language package.
-      - '-v'
-      - '/workspace:/app/repo'
-      # The image that was built in the first step.
-      - 'gcr.io/$PROJECT_ID/python-librarian-generator:latest'
-      # The command to execute inside the container.
-      - 'build'
-
 options:
   default_logs_bucket_behavior: REGIONAL_USER_OWNED_BUCKET
   machineType: E2_HIGHCPU_32