remove g-stands-for from user agent string
diff --git a/src/core/ext/filters/http/client/http_client_filter.cc b/src/core/ext/filters/http/client/http_client_filter.cc
index b1956c3..d690d6f 100644
--- a/src/core/ext/filters/http/client/http_client_filter.cc
+++ b/src/core/ext/filters/http/client/http_client_filter.cc
@@ -538,9 +538,8 @@
     }
   }
 
-  gpr_asprintf(&tmp, "%sgrpc-c/%s (%s; %s; %s)", is_first ? "" : " ",
-               grpc_version_string(), GPR_PLATFORM_STRING, transport_name,
-               grpc_g_stands_for());
+  gpr_asprintf(&tmp, "%sgrpc-c/%s (%s; %s)", is_first ? "" : " ",
+               grpc_version_string(), GPR_PLATFORM_STRING, transport_name);
   is_first = 0;
   gpr_strvec_add(&v, tmp);