Fixed an issue creating extensions 'postgis_topology', and

'postgis_tiger_geocoder'.

Current implementation changes the schema name, whenever we chance the
name, which is wrong. We should have not change the schema for this
event.

Thanks Fahar Abbas for reporting.

web/pgadmin/browser/server_groups/servers/databases/extensions/templates/extensions/js/extensions.js

@@ -154,9 +154,7 @@ function($, _, S, pgAdmin, pgBrowser) {
                     'version' : '',
                     'relocatable': (
                         (!_.isNull(d.relocatable[0]) && !_.isUndefined(d.relocatable[0])) ?
-                        d.relocatable[0]: ''),
-                    'schema': ((!_.isNull(d.schema[0]) &&
-                          !_.isUndefined(d.schema[0])) ? d.schema[0]: '')
+                        d.relocatable[0]: '')
                     };
                   this.model.set(changes);
                 }