Remove justify-self from grid validator

Per https://issues.chromium.org/issues/374801318#comment6, `justify-self` is now supported for block items as well, hence removing it from
a GridItem validator.

Fixed: 374991970
Change-Id: I94dacd560ee71ca3fda2649ba2ff46e597972c81
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/5961523
Auto-Submit: Changhao Han <[email protected]>
Reviewed-by: Simon Zünd <[email protected]>
Commit-Queue: Simon Zünd <[email protected]>

Author: hanselfmu-chromium

front_end/panels/elements/CSSRuleValidator.ts

@@ -304,11 +304,6 @@ export class GridItemValidator extends CSSRuleValidator {
       'grid-row',
       'grid-row-end',
       'grid-row-start',
-      // At the time of writing (November 2022), `justify-self` is only in effect in grid layout.
-      // There are no other browsers that support `justify-self` in other layouts.
-      // https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Box_Alignment/Box_Alignment_In_Block_Abspos_Tables
-      // TODO: move `justify-self` to other validator or change pop-over text if Chrome supports CSS Align in other layouts.
-      'justify-self',
     ]);
   }