Remove unnecessary escape

Author: carlbennett

etc/password_denylist.json

@@ -63,7 +63,7 @@
   {"password": "qwertyuiop", "reason": "This password is too simple and well known."},
   {"password": "qwertyuiop[", "reason": "This password is too simple and well known."},
   {"password": "qwertyuiop[]", "reason": "This password is too simple and well known."},
-  {"password": "qwertyuiop[]\\\\", "reason": "This password is too simple and well known."},
+  {"password": "qwertyuiop[]\\", "reason": "This password is too simple and well known."},
   {"password": "z", "reason": "This password is too simple and well known."},
   {"password": "zx", "reason": "This password is too simple and well known."},
   {"password": "zxc", "reason": "This password is too simple and well known."},