addressed comments

tools/gce_setup/cloud_prod_runner.sh

@@ -34,7 +34,7 @@ main() {
   # temporarily remove ping_pong and cancel_after_first_response while investigating timeout
   test_cases=(large_unary empty_unary client_streaming server_streaming cancel_after_begin)
   auth_test_cases=(service_account_creds compute_engine_creds)
-  clients=(cxx java go ruby node csharp_mono)
+  clients=(cxx java go ruby node)
   for test_case in "${test_cases[@]}"
   do
     for client in "${clients[@]}"

tools/gce_setup/interop_test_runner.sh

@@ -36,7 +36,7 @@ echo $result_file_name
 main() {
   source grpc_docker.sh
   test_cases=(large_unary empty_unary ping_pong client_streaming server_streaming cancel_after_begin cancel_after_first_response)
-  clients=(cxx java go ruby node csharp_mono)
+  clients=(cxx java go ruby node)
   servers=(cxx java go ruby node python)
   for test_case in "${test_cases[@]}"
   do