Move InMemoryConfigStorage to a separate file

server/lib/python/cartodb_services/cartodb_services/refactor/storage/mem_config.py

@@ -0,0 +1,12 @@
+from interfaces import ConfigStorageInterface
+
+class InMemoryConfigStorage(ConfigStorageInterface):
+
+    def __init__(self, config_hash={}):
+        self._config_hash = config_hash
+
+    def get(self, key):
+        try:
+            return self._config_hash[key]
+        except KeyError:
+            return None

server/lib/python/cartodb_services/cartodb_services/refactor/storage/server_config.py

@@ -13,18 +13,6 @@ class InDbServerConfigStorage(ConfigStorageInterface):
         else:
             return None
 
-
-class InMemoryConfigStorage(ConfigStorageInterface):
-
-    def __init__(self, config_hash={}):
-        self._config_hash = config_hash
-
-    def get(self, key):
-        try:
-            return self._config_hash[key]
-        except KeyError:
-            return None
-
 class NullConfigStorage(ConfigStorageInterface):
 
     def get(self, key):