Plans page light touch: Remove unused CSS rules about hiding monthly-annual-switch on mobile for group tab.

This is removed because monthly-annual-switch is already hidden on all screen size for group tab.

(in the current plans page, monthly-annual-switch will be disabled on desktop and will be hidden on mobile)

GitOrigin-RevId: bdb682b97844b6e3fb50be3c65eb6bd945d73648

services/web/frontend/stylesheets/app/plans/plans-light-touch-redesign.less

@@ -132,12 +132,6 @@
     }
   }
 
-  @media (max-width: @screen-xs-max) {
-    [data-ol-current-view='group'] [data-ol-plans-v2-m-a-switch-container] {
-      display: none;
-    }
-  }
-
   .plans-top-switch ul {
     background-color: var(--neutral-10);
     display: inline-flex;
@@ -248,10 +242,6 @@
 
     @media (max-width: @screen-xs-max) {
       margin-top: var(--spacing-08);
-
-      &[data-ol-current-view='group'] {
-        display: none;
-      }
     }
 
     label {