Cleaned up BUILD file, which fixed a dependency problem with protobuf.

test/cpp/util/BUILD

@@ -269,27 +269,15 @@ grpc_cc_test(
 grpc_cc_binary(
     name = "grpc_cli",
     srcs = [
-        "cli_call.cc",
-        "cli_call.h",
-        "cli_credentials.cc",
-        "cli_credentials.h",
-        "config_grpc_cli.h",
         "grpc_cli.cc",
-        "grpc_tool.cc",
-        "grpc_tool.h",
-        "proto_file_parser.cc",
-        "proto_file_parser.h",
-        "proto_reflection_descriptor_database.cc",
-        "proto_reflection_descriptor_database.h",
-        "service_describer.cc",
-        "service_describer.h",
-        "test_config.h",
-        "test_config_cc.cc",
     ],
     external_deps = [
         "gflags",
     ],
     deps = [
+        ":grpc_cli_libs",
+        ":grpc++_proto_reflection_desc_db",
+        ":test_config",
         "//:grpc++",
         "//src/proto/grpc/reflection/v1alpha:reflection_proto",
     ],