Don't drop args from macros' anchors

Reverts part of 67f77b1

Macro arg count actually matters, overloads exist

Author: oprypin

mkdocstrings/handlers/crystal/items.py

@@ -397,10 +397,6 @@ class DocMacro(DocMethod):
 
     METHOD_ID_SEP = ":"
 
-    @property
-    def rel_id(self):
-        return self.name
-
     @property
     def kind(self) -> str:
         return "macro"