Some further ESLint cleanup, remove some unnecessary scripts and lines (#2984)

e2e/.eslintrc.json

@@ -1,18 +0,0 @@
-{
-    "env": {
-        "mocha": true
-    },
-    "globals": {
-        "open_window": true
-    },
-    "rules": {
-        "import/no-commonjs": 0,
-        "func-names": 0,
-        "global-require": 0,
-        "max-nested-callbacks": 0,
-        "no-eval": 0,
-        "no-magic-numbers": 0,
-        "no-unused-expressions": 0,
-        "prefer-arrow-callback": 0
-    }
-}

e2e/modules/environment.js

@@ -306,7 +306,6 @@ module.exports = {
 
     // execute the test only when `condition` is true
     shouldTest(it, condition) {
-    // eslint-disable-next-line no-only-tests/no-only-tests
         return condition ? it : it.skip;
     },
     isOneOf(platforms) {