Ad: remove unused style ID

- Removed "customAniviewStyling"
    - No longer exists -- it was from the old DOM manipulation method.

- Removed "with no tileLayout it indicates sidebar ad"
    - Misleading and not useful. I can easily set the sidebar ad to Tile if we wanted to (it used to be in Tile, we changed to save space). So, every time we change the style, we need to update the comment??

    - The sidebar is not the only place that List layout is used -- there's Channel and Category pages, which allows either layout.

web/component/ads/view.jsx

@@ -95,7 +95,6 @@ function Ads(props: Props) {
           removeIfExists('[src^="https://player.aniview.com/script/6.1/aniview.js"]');
           removeIfExists('[id^="AVLoaderaniplayer_vidcrunch"]');
           removeIfExists('#av_css_id');
-          removeIfExists('#customAniviewStyling');
         };
       } catch (e) {}
     }
@@ -121,7 +120,7 @@ function Ads(props: Props) {
     return (
       <div
         className={classnames('ads ads__claim-item', className, {
-          'ads__claim-item--tile': tileLayout, // with no tileLayout it indicates sidebar ad
+          'ads__claim-item--tile': tileLayout,
         })}
       >
         <div className="ad__container">