refactor(core): Remove unused A11Y_CLICK_SUPPORT define. (angular#56901)

This behavior was moved to be configured by a runtime boolean, rather
than a define.

PR Close angular#56901

Author: tbondwilkinson

goldens/public-api/core/primitives/event-dispatch/index.api.md

@@ -21,8 +21,6 @@ export interface EarlyJsactionDataContainer {
 // @public
 export class EventContract implements UnrenamedEventContract {
     constructor(containerManager: EventContractContainerManager, useActionResolver?: false | undefined);
-    // (undocumented)
-    static A11Y_CLICK_SUPPORT: boolean;
     addA11yClickSupport(): void;
     addEvent(eventType: string, prefixedEventType?: string): void;
     cleanUp(): void;

packages/core/primitives/event-dispatch/src/event_contract_defines.ts

@@ -6,12 +6,6 @@
  * found in the LICENSE file at https://angular.io/license
  */
 
-/**
- * @define Support for accessible click actions.  This flag can be overridden in
- * a build rule.
- */
-export const A11Y_CLICK_SUPPORT = false;
-
 /**
  * @define Support for the non-bubbling mouseenter and mouseleave events.  This
  * flag can be overridden in a build rule.

packages/core/primitives/event-dispatch/src/eventcontract.ts

@@ -33,7 +33,7 @@
 import {EarlyJsactionData, EarlyJsactionDataContainer} from './earlyeventcontract';
 import * as eventLib from './event';
 import {EventContractContainerManager} from './event_contract_container';
-import {A11Y_CLICK_SUPPORT, MOUSE_SPECIAL_SUPPORT} from './event_contract_defines';
+import {MOUSE_SPECIAL_SUPPORT} from './event_contract_defines';
 import * as eventInfoLib from './event_info';
 import {EventType, NON_BUBBLING_MOUSE_EVENTS} from './event_type';
 import {Restriction} from './restriction';
@@ -75,7 +75,6 @@ type EventHandler = (eventType: string, event: Event, container: Element) => voi
  * be delay loaded in a generic way.
  */
 export class EventContract implements UnrenamedEventContract {
-  static A11Y_CLICK_SUPPORT = A11Y_CLICK_SUPPORT;
   static MOUSE_SPECIAL_SUPPORT = MOUSE_SPECIAL_SUPPORT;
 
   private containerManager: EventContractContainerManager | null;