Revert "Add GC of layers in Clair"

This reverts 49872838ab

util/secscan/api.py

@@ -28,7 +28,6 @@ class APIRequestFailure(Exception):
 
 _API_METHOD_INSERT = 'layers'
 _API_METHOD_GET_LAYER = 'layers/%s'
-_API_METHOD_DELETE_LAYER = 'layers/%s'
 _API_METHOD_MARK_NOTIFICATION_READ = 'notifications/%s'
 _API_METHOD_GET_NOTIFICATION = 'notifications/%s'
 _API_METHOD_PING = 'metrics'
@@ -123,26 +122,6 @@ class SecurityScannerAPI(object):
       'Layer': layer_request,
     }
 
-  def delete_layers(self, layers):
-    """ Deletes the given layers in the security scanner. """
-    if self._config is None:
-      # Not configured.
-      return
-
-    for layer in layers:
-      layer_id = '%s.%s' % (layer.docker_image_id, layer.storage.uuid)
-      self.delete_layer(layer_id)
-
-  def delete_layer(self, layer_id):
-    """ Calls DELETE on the layer with the given ID in the security scanner, removing it from
-        its database.
-    """
-    try:
-      response = self._call('DELETE', _API_METHOD_DELETE_LAYER % layer_id)
-      return response.status_code / 100 == 2
-    except requests.exceptions.RequestException:
-      logger.exception('Failed to delete layer: %s', layer_id)
-      return False
 
   def ping(self):
     """ Calls GET on the metrics endpoint of the security scanner to ensure it is running