diff --git a/gnocchi/storage/ceph.py b/gnocchi/storage/ceph.py
index e242e0854..aad5b521c 100644
--- a/gnocchi/storage/ceph.py
+++ b/gnocchi/storage/ceph.py
@@ -157,10 +157,6 @@ class CephStorage(_carbonara.CarbonaraBasedStorage):
         self.ioctx.write_full(
             self._build_unaggregated_timeserie_path(metric, version), data)
 
-    def _delete_unaggregated_timeserie(self, metric, version=3):
-        self.ioctx.aio_remove(
-            self._build_unaggregated_timeserie_path(metric, version))
-
     def _get_object_content(self, name):
         offset = 0
         content = b''
diff --git a/gnocchi/storage/file.py b/gnocchi/storage/file.py
index 5a91de3fd..3c067befa 100644
--- a/gnocchi/storage/file.py
+++ b/gnocchi/storage/file.py
@@ -98,15 +98,6 @@ class FileStorage(_carbonara.CarbonaraBasedStorage):
                 raise storage.MetricDoesNotExist(metric)
             raise
 
-    def _delete_unaggregated_timeserie(self, metric, version=3):
-        path = self._build_unaggregated_timeserie_path(metric, version)
-        try:
-            os.unlink(path)
-        except IOError as e:
-            if e.errno == errno.ENOENT:
-                raise storage.MetricDoesNotExist(metric)
-            raise
-
     def _list_split_keys_for_metric(self, metric, aggregation, granularity,
                                     version=3):
         try: