Remove postgres test from grb test job

ci_tests/gitlab-ci.yaml

@@ -12,11 +12,8 @@ test_basic_grb:
   stage: test
   script:
     - ./ci_tests/run_basic_grb_test.sh
-    # run, but don't care about failure
-    - ./ci_tests/run_basic_postgres_test.sh || true
   after_script:
     - ./ci_tests/cleanup_basic_grb_test.sh
-    - ./ci_tests/cleanup_basic_postgres_test.sh
   dependencies:
     - get_chart_grb
     - get_chart_geo2grid