fix: don't pass in default value when looking up config

The defaults are now registered correctly so we don't need to pass in
the default value when we look up a config value.

Differential Revision: https://phab.mercurial-scm.org/D7083

hgext/fix.py

@@ -794,11 +794,11 b' def getfixers(ui):'
     fixers = {}
     for name in fixernames(ui):
         fixers[name] = Fixer()
-        for key, default in FIXER_ATTRS.items():
+        for key in FIXER_ATTRS:
             setattr(
                 fixers[name],
                 pycompat.sysstr(b'_' + key),
-                ui.config(b'fix', name + b':' + key, default),
+                ui.config(b'fix', name + b':' + key),
             )
         fixers[name]._priority = int(fixers[name]._priority)
         fixers[name]._metadata = stringutil.parsebool(fixers[name]._metadata)