always use golint from vendor

hack/verify-golint.sh

@@ -23,15 +23,15 @@ source "${KUBE_ROOT}/hack/lib/init.sh"
 
 kube::golang::verify_go_version
 
-if ! which golint > /dev/null; then
-  # Ensure that we find the binaries we build before anything else.
-  export GOBIN="${KUBE_OUTPUT_BINPATH}"
-  PATH="${GOBIN}:${PATH}"
-
-  # Install golint from vendor
-  echo 'Can not find golint, installing from vendor'
-  go install k8s.io/kubernetes/vendor/golang.org/x/lint/golint
-fi
+
+# Ensure that we find the binaries we build before anything else.
+export GOBIN="${KUBE_OUTPUT_BINPATH}"
+PATH="${GOBIN}:${PATH}"
+
+# Install golint from vendor
+echo 'installing golint from vendor'
+go install k8s.io/kubernetes/vendor/golang.org/x/lint/golint
+
 
 cd "${KUBE_ROOT}"