Revert "settings [nfc]: Suppress some new deprecation warnings"

This reverts commit ebea818.

Author: rajveermalviya

lib/widgets/settings.dart

@@ -53,10 +53,7 @@ class _ThemeSetting extends StatelessWidget {
               themeSetting: themeSettingOption,
               zulipLocalizations: zulipLocalizations)),
             value: themeSettingOption,
-            // TODO(#1545) stop using the deprecated members
-            // ignore: deprecated_member_use
             groupValue: globalSettings.themeSetting,
-            // ignore: deprecated_member_use
             onChanged: (newValue) => _handleChange(context, newValue)),
       ]);
   }

test/flutter_checks.dart

@@ -251,7 +251,5 @@ extension SwitchListTileChecks<T> on Subject<SwitchListTile> {
 }
 
 extension RadioListTileChecks<T> on Subject<RadioListTile<T>> {
-  // TODO(#1545) stop using the deprecated member
-  // ignore: deprecated_member_use
   Subject<bool> get checked => has((x) => x.checked, 'checked');
 }