Remove obsolete network_tags table as a part of db upgrade cleanup

server/src/com/cloud/upgrade/dao/Upgrade301to302.java

@@ -57,6 +57,11 @@ public class Upgrade301to302 implements DbUpgrade {
 
     @Override
     public File[] getCleanupScripts() {
-        return null;
+        String script = Script.findScript("", "db/schema-301to302-cleanup.sql");
+        if (script == null) {
+            throw new CloudRuntimeException("Unable to find db/schema-301to302-cleanup.sql");
+        }
+
+        return new File[] { new File(script) };
     }
 }

setup/db/db/schema-301to302-cleanup.sql

@@ -0,0 +1,17 @@
+# Copyright 2012 Citrix Systems, Inc. Licensed under the
+# Apache License, Version 2.0 (the "License"); you may not use this
+# file except in compliance with the License.  Citrix Systems, Inc.
+# reserves all rights not expressly granted by 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.
+# 
+
+
+#Schema cleanup from 3.0.1 to 3.0.2;
+
+
+DROP TABLE IF EXISTS `cloud`.`network_tags`;