Moving prototype from Google to GitHub

I'd started some prototyping work on this change before the move to
GitHub; this change restores things.
diff --git a/test/core/surface/lame_client_test.c b/test/core/surface/lame_client_test.c
index 0520a39..11d5e4a 100644
--- a/test/core/surface/lame_client_test.c
+++ b/test/core/surface/lame_client_test.c
@@ -63,10 +63,9 @@
 
   /* and invoke the call */
   GPR_ASSERT(GRPC_CALL_OK ==
-             grpc_call_start_invoke(call, cq, tag(1), tag(2), tag(3), 0));
+             grpc_call_invoke(call, cq, tag(2), tag(3), 0));
 
   /* the call should immediately fail */
-  cq_expect_invoke_accepted(cqv, tag(1), GRPC_OP_ERROR);
   cq_expect_client_metadata_read(cqv, tag(2), NULL);
   cq_expect_finished(cqv, tag(3), NULL);
   cq_verify(cqv);