Validate that we can upload build collection

Run galaxy-importer on the built artifact and fail if galaxy is
going to fail.

Remove license_file entry in galaxy.yml

Change-Id: I6c2ac22ccb56f52f8efcefc5891b10875ae8c0b5

tools/check-import.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+# Copyright 2020 Red Hat, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+set -e
+
+TOXDIR=${1:-.}
+
+# galaxy_importer.main does not return non-zero error code on error
+output=$(python -m galaxy_importer.main $TOXDIR/build_artifact/*)
+if echo $output | grep ERROR: ; then
+    exit 1
+fi