removed unwanted variables

Author: manthansubhash01

lib/widgets/all_channels.dart

@@ -10,7 +10,6 @@ import 'action_sheet.dart';
 import 'actions.dart';
 import 'app_bar.dart';
 import 'button.dart';
-import 'icons.dart';
 import 'message_list.dart';
 import 'page.dart';
 import 'remote_settings.dart';
@@ -95,7 +94,6 @@ class AllChannelsListEntry extends StatelessWidget {
     final store = PerAccountStoreWidget.of(context);
     final designVariables = DesignVariables.of(context);
     final channel = this.channel;
-    final Subscription? subscription = channel is Subscription ? channel : null;
     final hasContentAccess = store.selfHasContentAccess(channel);
 
     return InkWell(

lib/widgets/inbox.dart

@@ -483,7 +483,6 @@ class _StreamHeaderItem extends _HeaderItem with _LongPressable {
   }
   @override
   Widget build(BuildContext context) {
-    final zulipLocalizations = ZulipLocalizations.of(context);
     final designVariables = DesignVariables.of(context);
     return Material(
       color: collapsed

lib/widgets/message_list.dart

@@ -528,19 +528,9 @@ class MessageListAppBarTitle extends StatelessWidget {
   Widget _buildStreamRow(BuildContext context, {
     ZulipStream? stream,
   }) {
-    final store = PerAccountStoreWidget.of(context);
     final designVariables = DesignVariables.of(context);
     final zulipLocalizations = ZulipLocalizations.of(context);
 
-    // A null [Icon.icon] makes a blank space.
-    IconData? icon;
-    Color? iconColor;
-    if (stream != null) {
-      icon = iconDataForStream(stream);
-      iconColor = colorSwatchFor(context, store.subscriptions[stream.streamId])
-        .iconOnBarBackground;
-    }
-
     return Row(
       mainAxisSize: MainAxisSize.min,
       // TODO(design): The vertical alignment of the stream privacy icon is a bit ad hoc.
@@ -1712,7 +1702,6 @@ class StreamMessageRecipientHeader extends StatelessWidget {
 
     final swatch = colorSwatchFor(context, store.subscriptions[streamId]);
     final backgroundColor = swatch.barBackground;
-    final iconColor = swatch.iconOnBarBackground;
 
     final Widget streamWidget;
     if (!_containsDifferentChannels(narrow)) {

lib/widgets/subscription_list.dart

@@ -292,7 +292,6 @@ class SubscriptionItem extends StatelessWidget {
   Widget build(BuildContext context) {
     final designVariables = DesignVariables.of(context);
 
-    final swatch = colorSwatchFor(context, subscription);
     final hasUnreads = (unreadCount > 0);
     final opacity = subscription.isMuted ? 0.55 : 1.0;
     return Material(