Fixing "warning: Import ... but not used" warnings from protoc
Risk Level: Low
Testing: manually built protos
Signed-off-by: Chris Heisterkamp <cheister@squareup.com>
Mirrored from https://github.com/envoyproxy/envoy @ 209b8f96498162834856a4330f27deafdf7e0518
Signed-off-by: John Plevyak <jplevyak@gmail.com>
Signed-off-by: Piotr Sikora <piotrsikora@google.com>
Mirrored from https://github.com/envoyproxy/envoy @ 319a9a647f19036d831a75f68350c90e98bfc365