remove codebuild smoke tests and rename CI job

Author: sbSteveK

.github/workflows/ci.yml

@@ -285,8 +285,8 @@ jobs:
         run: |
           ./utils/check_codegen_edits.py
 
-  # Runs the samples and ensures that everything is working
-  linux-smoke-tests:
+  # Runs the service client tests
+  linux-service-client-tests:
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false