Remove unused parameters, variables from cldr.py and ldml.py

Found these while adding type annotations.

Task-number: QTBUG-129566
Pick-to: 6.8
Change-Id: I51c8e5676f958094946c0e6f396b98c083fd9de0
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>

util/locale_database/cldr.py

@@ -292,7 +292,7 @@ class CldrReader (object):
                       currencyRounding = int(rounding))
 
         locale.update(scan.currencyData(iso))
-        locale.update(scan.numericData(self.root.numberSystem, self.whitter))
+        locale.update(scan.numericData(self.root.numberSystem))
         locale.update(scan.textPatternData())
         locale.update(scan.endonyms(language, script, territory, variant))
         locale.update(scan.unitData()) # byte, kB, MB, GB, ..., KiB, MiB, GiB, ...

util/locale_database/ldml.py

@@ -270,7 +270,7 @@ class LocaleScanner (object):
         yield 'currencySymbol', symbol
         yield 'currencyDisplayName', name
 
-    def numericData(self, lookup, complain = lambda text: None):
+    def numericData(self, lookup):
         """Generate assorted numeric data for the locale.
 
         First argument, lookup, is a callable that maps a numbering
@@ -436,7 +436,7 @@ class LocaleScanner (object):
 
         See CldrAccess.readMetaZoneMap() for the locale-independent
         data that stitches these pieces together."""
-        stem, formats = 'dates/timeZoneNames', {}
+        stem = 'dates/timeZoneNames'
         # '+HH:mm;-HH:mm' (and :ss is also supported, but nowhere used in v45).
         # Sometimes has single-digit hours
         hours = self.find(f'{stem}/hourFormat').split(';')