undo changes to expansion panel for now

Author: mmalerba

src/material/expansion/expansion-panel-header.scss

@@ -5,9 +5,6 @@
   padding: 0 24px;
   border-radius: inherit;
 
-  // Required for focus indicator.
-  position: relative;
-
   &:focus,
   &:hover {
     outline: none;

src/material/expansion/expansion-panel-header.ts

@@ -48,7 +48,7 @@ import {MatAccordionTogglePosition} from './accordion-base';
     matExpansionAnimations.expansionHeaderHeight
   ],
   host: {
-    'class': 'mat-expansion-panel-header mat-focus-indicator',
+    'class': 'mat-expansion-panel-header',
     'role': 'button',
     '[attr.id]': 'panel._headerId',
     '[attr.tabindex]': 'disabled ? -1 : 0',

src/material/expansion/expansion-panel.scss

@@ -10,7 +10,6 @@
   margin: 0;
   border-radius: $border-radius;
   overflow: hidden;
-  position: relative;
   transition: margin 225ms $mat-fast-out-slow-in-timing-function,
       mat-elevation-transition-property-value();
 

src/material/expansion/expansion.spec.ts

@@ -450,14 +450,6 @@ describe('MatExpansionPanel', () => {
       });
 
   });
-
-  it('should have a focus indicator', () => {
-    const fixture = TestBed.createComponent(PanelWithContent);
-    const headerNativeElement =
-        fixture.debugElement.query(By.directive(MatExpansionPanelHeader))!.nativeElement;
-
-    expect(headerNativeElement.classList.contains('mat-focus-indicator')).toBe(true);
-  });
 });