remove duplicated keyboard dispatch registration.

src/vs/workbench/services/keybinding/electron-browser/keybinding.contribution.ts

@@ -17,13 +17,6 @@ const keyboardConfiguration: IConfigurationNode = {
 	'title': nls.localize('keyboardConfigurationTitle', "Keyboard"),
 	'overridable': true,
 	'properties': {
-		'keyboard.dispatch': {
-			'type': 'string',
-			'enum': ['code', 'keyCode'],
-			'default': 'code',
-			'markdownDescription': nls.localize('dispatch', "Controls the dispatching logic for key presses to use either `code` (recommended) or `keyCode`."),
-			'included': OS === OperatingSystem.Macintosh || OS === OperatingSystem.Linux
-		},
 		'keyboard.touchbar.enabled': {
 			'type': 'boolean',
 			'default': true,