Revert of Removed virtualenv from depot_tools

third_party/cq_client/cq_pb2.py

Index: third_party/cq_client/cq_pb2.py
diff --git a/third_party/cq_client/cq_pb2.py b/third_party/cq_client/cq_pb2.py
index 2e2f364b8b214b75e388a0845f45ad4643fda601..3ea8c6592fb919d8e960266b06c9cd893e9dd4fc 100644
--- a/third_party/cq_client/cq_pb2.py
+++ b/third_party/cq_client/cq_pb2.py
@@ -1,21 +1,13 @@
-# This file was originally generated by the protocol buffer compiler 2.6.1, but
-# was subsequently manually edited to import protobuf26 instead of
-# google.protobuf to prevent conflicts with a different version of
-# google.protobuf that some users of depot_tools have installed. If you need to
-# re-generate this file, please make similar changes again and add this comment
-# back. More details on why we chose to rename the package can be found in the
-# file depot_tools/third_party/protobuf26/README.chromium.
-
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # source: cq.proto
 
 import sys
 _b=sys.version_info[0]<3 and (lambda x:x) or (lambda x:x.encode('latin1'))
-from protobuf26 import descriptor as _descriptor
-from protobuf26 import message as _message
-from protobuf26 import reflection as _reflection
-from protobuf26 import symbol_database as _symbol_database
-from protobuf26 import descriptor_pb2
+from google.protobuf import descriptor as _descriptor
+from google.protobuf import message as _message
+from google.protobuf import reflection as _reflection
+from google.protobuf import symbol_database as _symbol_database
+from google.protobuf import descriptor_pb2
 # @@protoc_insertion_point(imports)
 
 _sym_db = _symbol_database.Default()