fix config file

tools/internal_ci/macos/grpc_experiment.cfg

@@ -1,4 +1,4 @@
-# Copyright 2020 gRPC authors.
+# Copyright 2019 The gRPC Authors
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -15,16 +15,4 @@
 # Config file for the internal CI (in protobuf text format)
 
 # Location of the continuous shell script in repository.
-build_file: "grpc/tools/internal_ci/linux/grpc_run_bazel_cpp_ios_tests.sh"
-timeout_mins: 240
-action {
-  define_artifacts {
-    regex: "**/*sponge_log.*"
-    regex: "github/grpc/reports/**"
-  }
-}
-
-env_vars {
-  key: "RUN_TESTS_FLAGS"
-  value: "-f bazel macos multilang --inner_jobs 16 -j 2 --internal_ci"
-}
+build_file: "grpc/tools/internal_ci/macos/grpc_run_bazel_cpp_ios_tests.sh"