diff --git a/capa/rules/__init__.py b/capa/rules/__init__.py
index 01908790..64fd7e37 100644
--- a/capa/rules/__init__.py
+++ b/capa/rules/__init__.py
@@ -261,12 +261,6 @@ def parse_feature(key: str):
         return capa.features.common.StringFactory
     elif key == "substring":
         return capa.features.common.Substring
-    elif key == "registry":
-        return capa.features.common.Registry
-    elif key == "filename":
-        return capa.features.common.Filename
-    elif key == "mutex":
-        return capa.features.common.Mutex
     elif key == "bytes":
         return capa.features.common.Bytes
     elif key == "number":