skip on fresh install

on fresh install we were getting error that django.utils.connection.ConnectionDoesNotExist: The connection 'commcarehq_repeaters' doesn't exist. It makes sense, the things that migration was doing were related to repeat records couch to sql migration. And we don't need to run it on fresh installs

corehq/motech/repeaters/migrations/0002_repeaters_db.py

@@ -7,6 +7,8 @@
 from django.db import connections, migrations
 from django.db.utils import DEFAULT_DB_ALIAS
 
+from corehq.util.django_migrations import skip_on_fresh_install
+
 # Use a separate user for the fdw connection because postgres_fdw
 # changes session settings like search_path that interfere with other
 # clients because of pg_bouncer connection pooling.
@@ -120,12 +122,14 @@
 
 class RepeatersMigration(migrations.RunSQL):
 
+    @skip_on_fresh_install
     def database_forwards(self, app_label, schema_editor, from_state, to_state):
         if self.should_apply(schema_editor):
             assert count_records(schema_editor.connection, "repeatrecord") == 0
             assert count_records(schema_editor.connection, "repeatrecordattempt") == 0
             self._run_sql(schema_editor, self.sql.format(**self.context))
 
+    @skip_on_fresh_install
     def database_backwards(self, app_label, schema_editor, from_state, to_state):
         if self.should_apply(schema_editor):
             assert count_records(connections["repeaters"], "repeatrecord") == 0