Merge pull request #2560 from thaJeztah/remove_dead_code

types: remove some dead code

libnetwork/types/types.go

@@ -591,8 +591,6 @@ func (br badRequest) Error() string {
 }
 func (br badRequest) BadRequest() {}
 
-type maskBadRequest string
-
 type notFound string
 
 func (nf notFound) Error() string {
@@ -614,8 +612,6 @@ func (ns noService) Error() string {
 }
 func (ns noService) NoService() {}
 
-type maskNoService string
-
 type timeout string
 
 func (to timeout) Error() string {