org-ql-defpred-alias: Simplified custom predicates

Author: yantar92

org-ql.el

@@ -979,9 +979,9 @@ QUERY is a valid `org-ql' query."
   `(org-ql-defpred ,name ,args
      ,docstring
      :normalizers ((`(,predicate-names)
-                    (org-ql-normalize-query ',query)))
+                    (rec ',query)))
      :preambles ((`(,predicate-names)
-                  (org-ql-query-preamble ',query)))
+                  (rec ',query)))
      :body
      ,query))