Enabled strict errors in eslint

.eslintrc.json

@@ -130,7 +130,7 @@
         "yoda": [2, "never", { "exceptRange": true }],
 
         // Strict Mode
-        "strict": [0, "global"],
+        "strict": [2, "global"],
 
         // Variables
         "init-declarations": 0,

src/helpers/objects.processor.js

@@ -1,5 +1,3 @@
-'use strict';
-
 /* eslint no-param-reassign: 0*/
 /* eslint no-undef: 0 */
 

src/helpers/utils.js

@@ -1,5 +1,3 @@
-'use strict';
-
 const escapeRegExp = function (str) {
     return str.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, '\$&');
 };

src/steps/given.js

@@ -1,5 +1,3 @@
-'use strict';
-
 /* eslint new-cap: 0 */
 
 const { defineSupportCode } = require('cucumber');

src/steps/then.js

@@ -1,5 +1,3 @@
-'use strict';
-
 /* eslint new-cap: 0 */
 
 const { defineSupportCode } = require('cucumber');

test/features/page_objects/main.js

@@ -1,5 +1,3 @@
-'use strict';
-
 let e = {};
 
 e.txtHeader = '//*[@id="header"]';

test/mocha/objects.processor.spec.js

@@ -1,5 +1,3 @@
-'use strict';
-
 const { expect } = require('chai');
 
 const {

test/wdio.conf.js

@@ -1,5 +1,3 @@
-'use strict';
-
 /* eslint max-len: 0 */
 /* eslint no-unused-vars: 0 */
 /* eslint no-multi-spaces: 0 */