remove multi-module check

hack/check-multi-module.sh

@@ -1,23 +0,0 @@
-#!/usr/bin/env bash
-
-set -e
-
-if [[ "$PULL_NUMBER" -ne "" ]]; then
-    cmd="$MYGOBIN/prchecker
-    -owner=$REPO_OWNER
-    -repo=$REPO_NAME
-    -pr=$PULL_NUMBER
-    $MODULES"
-
-
-    echo $MYGOBIN
-    echo $REPO_OWNER
-    echo $REPO_NAME
-    echo $PULL_NUMBER
-    echo $MODULES
-    eval $cmd
-else
-    echo "Multi-module check skipped. No PULL_NUMBER provided.
-
-To run this check locally set PULL_NUMBER to the PR ID from GitHub."
-fi