Remove some references to GOPATH

hack/lint-dependencies.sh

@@ -25,7 +25,7 @@ set -o pipefail
 KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 source "${KUBE_ROOT}/hack/lib/init.sh"
 
-# Explicitly opt into go modules, even though we're inside a GOPATH directory
+# Explicitly opt into go modules
 export GO111MODULE=on
 # Explicitly set GOFLAGS to ignore vendor, since GOFLAGS=-mod=vendor breaks dependency resolution while rebuilding vendor
 export GOFLAGS=-mod=mod