tree 2baa657c86746c6f6d8ff01d483c114a916a0e00
parent ab61d41ec93f50a14e11bb0da0a802e4017d1222
author Joe Tsai <joetsai@digital-static.net> 1555443581 -0700
committer Joe Tsai <thebrokentoaster@gmail.com> 1555458787 +0000

runtime/protoimpl: remove ExtensionFieldsV1

This is no longer directly used by v1.

Change-Id: I14a283dd2d1572d50ebd82fdf55f7d86bfacc272
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/172438
Reviewed-by: Damien Neil <dneil@google.com>