Revert tab-bar styling changes

Author: OS-pedrolourenco

core/src/components/tab-bar/tab-bar.ionic.scss

@@ -37,21 +37,13 @@
   padding-right: calc(globals.$ion-space-400 + var(--ion-safe-area-right, 0));
   padding-left: calc(globals.$ion-space-400 + var(--ion-safe-area-left, 0));
   /* stylelint-enable */
-
-  //contain: size layout style;
 }
 
 :host([slot="top"].tab-bar-full) {
   padding-top: calc(globals.$ion-space-100 + var(--ion-safe-area-top, 0));
   padding-bottom: globals.$ion-space-100;
 }
 
-:host-context(.ion-content) {
-  :host(.tab-bar-full) {
-      contain: size layout style;
-  }
-}
-
 /* Compact */
 :host(.tab-bar-compact) {
   @include globals.padding(globals.$ion-space-100, globals.$ion-space-400);