--- a/mercurial/templater.py	Thu Jul 23 10:20:48 2020 -0700
+++ b/mercurial/templater.py	Wed Jul 29 10:42:09 2020 -0700
@@ -1089,9 +1089,6 @@
     if path is None:
         path = templatedir()
 
-    if isinstance(styles, bytes):
-        styles = [styles]
-
     if path is not None:
         for style in styles:
             # only plain name is allowed to honor template paths