pw_rpc: Remove compatibility wrapper group

Change-Id: Ia39e128441e17c5b4333c32d03139972197a8d45
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/31920
Pigweed-Auto-Submit: Wyatt Hepler <hepler@google.com>
Reviewed-by: Alexei Frolov <frolv@google.com>
Commit-Queue: Auto-Submit <auto-submit@pigweed.google.com.iam.gserviceaccount.com>
diff --git a/pw_rpc/BUILD.gn b/pw_rpc/BUILD.gn
index f25a335..bb22728 100644
--- a/pw_rpc/BUILD.gn
+++ b/pw_rpc/BUILD.gn
@@ -1,4 +1,4 @@
-# Copyright 2020 The Pigweed Authors
+# Copyright 2021 The Pigweed Authors
 #
 # Licensed under the Apache License, Version 2.0 (the "License"); you may not
 # use this file except in compliance with the License. You may obtain a copy of
@@ -140,11 +140,6 @@
   inputs = [ "pw_rpc_protos/echo.options" ]
 }
 
-# TODO(hepler): Remove this compatibility wrapper.
-pw_python_group("echo_service_proto.python") {
-  python_deps = [ ":protos.python" ]
-}
-
 pw_doc_group("docs") {
   sources = [ "docs.rst" ]
   inputs = [