[fenix] For https://github.com/mozilla-mobile/fenix/issues/23260 - Remove @color/tab_history_item_selected_background_private_theme redirection

app/src/main/res/values/colors.xml

@@ -173,9 +173,6 @@
     <!-- Tab Tray -->
     <color name="tab_tray_item_media_background_private_theme">@color/photonViolet50</color>
 
-    <!-- Tab History -->
-    <color name="tab_history_item_selected_background_private_theme">@color/tab_tray_item_selected_background_dark_theme</color>
-
     <!-- Normal theme colors for light mode -->
     <color name="primary_text_normal_theme">@color/primary_text_light_theme</color>
     <color name="secondary_text_normal_theme">@color/photonGrey50</color>

app/src/main/res/values/styles.xml

@@ -273,7 +273,7 @@
         <item name="tabTrayThumbnailIcon">@color/tab_tray_item_thumbnail_icon_normal_theme</item>
 
         <!-- Tab History -->
-        <item name="tabHistoryItemSelectedBackground">@color/tab_history_item_selected_background_private_theme</item>
+        <item name="tabHistoryItemSelectedBackground">@color/tab_tray_item_selected_background_dark_theme</item>
 
         <!-- Drawables -->
         <item name="fenixLogo">@drawable/ic_logo_wordmark_private</item>