Remove unnecessary "use strict" directives

ext/src/cast/export.ts

@@ -1,6 +1,3 @@
-/* eslint-disable @typescript-eslint/no-namespace */
-"use strict";
-
 import type { TypedMessagePort } from "../lib/TypedMessagePort";
 import messaging, { Message } from "../messaging";
 import type { ReceiverDevice } from "../types";

ext/src/cast/knownApps.ts

@@ -1,5 +1,3 @@
-"use strict";
-
 const _ = browser.i18n.getMessage;
 
 export interface KnownApp {

ext/src/cast/sdk/Session.ts

@@ -1,5 +1,3 @@
-"use strict";
-
 import { v4 as uuid } from "uuid";
 
 import { Logger } from "../../lib/logger";

ext/src/cast/sdk/classes.ts

@@ -1,5 +1,3 @@
-"use strict";
-
 import type Session from "./Session";
 
 import {

ext/src/cast/sdk/enums.ts

@@ -1,5 +1,3 @@
-"use strict";
-
 export enum AutoJoinPolicy {
     TAB_AND_ORIGIN_SCOPED = "tab_and_origin_scoped",
     ORIGIN_SCOPED = "origin_scoped",

ext/src/cast/sdk/index.ts

@@ -1,5 +1,3 @@
-"use strict";
-
 import { Logger } from "../../lib/logger";
 
 import type { Message } from "../../messaging";

ext/src/cast/sdk/media/Media.ts

@@ -1,5 +1,3 @@
-"use strict";
-
 import { v4 as uuid } from "uuid";
 
 import { Logger } from "../../../lib/logger";

ext/src/cast/sdk/media/classes.ts

@@ -1,5 +1,3 @@
-"use strict";
-
 import type { Image, Volume } from "../classes";
 
 import {

ext/src/cast/sdk/media/enums.ts

@@ -1,5 +1,3 @@
-"use strict";
-
 export enum ContainerType {
     GENERIC_CONTAINER,
     AUDIOBOOK_CONTAINER

ext/src/cast/sdk/media/index.ts

@@ -1,5 +1,3 @@
-"use strict";
-
 export * from "./enums";
 export * from "./classes";
 

ext/src/cast/sdk/types.ts

@@ -1,5 +1,3 @@
-"use strict";
-
 /**
  * Keep in sync with bridge types at:
  *   app/src/bridge/components/cast/types.ts

ext/src/cast/senders/mirroring.ts

@@ -1,5 +1,3 @@
-"use strict";
-
 import options from "../../lib/options";
 import { Logger } from "../../lib/logger";
 

ext/src/cast/urls.ts

@@ -1,5 +1,3 @@
-"use strict";
-
 /**
  * Cast Chrome Sender SDK loader script.
  *