Removing this file used to trick dep into importing packages, the second import already exists in the logproto.pb.go file and the first import is already imported other places in our code.

This should fix the anyone using the logproto.pb.go file from registering a bunch of cortex metrics.

pkg/logproto/dep.go

@@ -1,7 +0,0 @@
-package logproto
-
-import (
-	// trick dep into including this, needed by the generated code.
-	_ "github.com/cortexproject/cortex/pkg/chunk/storage"
-	_ "github.com/gogo/protobuf/types"
-)