Bug 1782008 - Remove now unnecessary .eslintrc.js files....

Bug 1782008 - Remove now unnecessary .eslintrc.js files. r=webcompat-reviewers,extension-reviewers,media-playback-reviewers,pip-reviewers,denschub,rpl,alwu,mossop

Differential Revision: https://phabricator.services.mozilla.com/D152736

devtools/client/styleeditor/test/.eslintrc.js

-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};

devtools/shared/commands/inspected-window/tests/.eslintrc.js

-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};

devtools/shared/commands/inspector/tests/.eslintrc.js

-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};

devtools/shared/commands/resource/tests/.eslintrc.js

-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};

devtools/shared/commands/script/tests/.eslintrc.js

-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};

devtools/shared/commands/target-configuration/tests/.eslintrc.js

-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};

devtools/shared/commands/target/tests/.eslintrc.js

-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};

devtools/shared/commands/thread-configuration/tests/.eslintrc.js

-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};

devtools/shared/security/tests/chrome/.eslintrc.js

-"use strict";
-
-module.exports = {
-  // Extend from the shared list of defined globals for mochitests.
-  extends: "plugin:mozilla/chrome-test",
-};

devtools/shared/test-helpers/.eslintrc.js

-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};

devtools/shared/webconsole/test/chrome/.eslintrc.js

-"use strict";
-
-module.exports = {
-  // Extend from the shared list of defined globals for mochitests.
-  extends: "plugin:mozilla/chrome-test",
-};

docshell/test/iframesandbox/.eslintrc.js

-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};

docshell/test/navigation/.eslintrc.js

-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test", "plugin:mozilla/mochitest-test"],
-};

dom/abort/tests/.eslintrc.js

-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-  plugins: ["mozilla"],
-  rules: {
-    "no-shadow": "off",
-  },
-  globals: {
-    AbortController: true,
-    AbortSignal: true,
-  },
-};

dom/animation/test/mozilla/.eslintrc.js

-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};

dom/animation/test/style/.eslintrc.js

-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};

dom/battery/test/.eslintrc.js

-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/chrome-test", "plugin:mozilla/mochitest-test"],
-};

dom/bindings/test/.eslintrc.js

-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/chrome-test", "plugin:mozilla/mochitest-test"],
-};

dom/broadcastchannel/tests/.eslintrc.js

-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test", "plugin:mozilla/mochitest-test"],
-};

dom/canvas/test/.eslintrc.js

-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};