Drop support for legacy Edge

tests/test.keyboard.js

@@ -1,7 +1,6 @@
 const expect = chai.expect;
 
 import Keyboard from '../core/input/keyboard.js';
-import * as browser from '../core/util/browser.js';
 
 describe('Key Event Handling', function () {
     "use strict";
@@ -20,7 +19,6 @@ describe('Key Event Handling', function () {
 
     describe('Decode Keyboard Events', function () {
         it('should decode keydown events', function (done) {
-            if (browser.isEdge()) this.skip();
             const kbd = new Keyboard(document);
             kbd.onkeyevent = (keysym, code, down) => {
                 expect(keysym).to.be.equal(0x61);
@@ -31,7 +29,6 @@ describe('Key Event Handling', function () {
             kbd._handleKeyDown(keyevent('keydown', {code: 'KeyA', key: 'a'}));
         });
         it('should decode keyup events', function (done) {
-            if (browser.isEdge()) this.skip();
             let calls = 0;
             const kbd = new Keyboard(document);
             kbd.onkeyevent = (keysym, code, down) => {
@@ -125,9 +122,6 @@ describe('Key Event Handling', function () {
         });
 
         describe('suppress the right events at the right time', function () {
-            beforeEach(function () {
-                if (browser.isEdge()) this.skip();
-            });
             it('should suppress anything with a valid key', function () {
                 const kbd = new Keyboard(document, {});
                 const evt1 = keyevent('keydown', {code: 'KeyA', key: 'a'});
@@ -156,7 +150,6 @@ describe('Key Event Handling', function () {
 
     describe('Fake keyup', function () {
         it('should fake keyup events for virtual keyboards', function (done) {
-            if (browser.isEdge()) this.skip();
             let count = 0;
             const kbd = new Keyboard(document);
             kbd.onkeyevent = (keysym, code, down) => {
@@ -178,9 +171,6 @@ describe('Key Event Handling', function () {
     });
 
     describe('Track Key State', function () {
-        beforeEach(function () {
-            if (browser.isEdge()) this.skip();
-        });
         it('should send release using the same keysym as the press', function (done) {
             const kbd = new Keyboard(document);
             kbd.onkeyevent = (keysym, code, down) => {