Merge pull request #325 from RichVanderwal/remove-unneeded-import-2

More uneeded includes removed

Author: RichVanderwal

v3/integrations/nrgrpc/go.mod

@@ -5,11 +5,9 @@ module github.com/newrelic/go-agent/v3/integrations/nrgrpc
 go 1.11
 
 require (
-	github.com/golang/lint v0.0.0-20180702182130-06c8688daad7 // indirect
 	// protobuf v1.3.0 is the earliest version using modules, we use v1.3.1
 	// because all dependencies were removed in this version.
 	github.com/golang/protobuf v1.3.3
-	github.com/kisielk/gotool v1.0.0 // indirect
 	github.com/newrelic/go-agent/v3 v3.12.0
 	// v1.15.0 is the earliest version of grpc using modules.
 	google.golang.org/grpc v1.27.0