Revert "ignore testing of vendor files"

This reverts commit ffb7c38e16.

.eslintrc.json

@@ -1,3 +0,0 @@
-{
-    "extends": "google"
-}

.jscsrc

@@ -2,10 +2,6 @@
     "preset": "wordpress",
     "fileExtensions": [ ".js" ],
     "excludeFiles": [
-    	"js/**.min.js",
-			"src/**/*.js",
-			"js/core.js",
-			"js/popper.js",
-			"js/theme.js"
+    	"js/**.min.js"
     ]
-}
+}

.jshintignore

@@ -1,5 +1 @@
-js/**.min.js
-src/**/*.js
-js/core.js
-js/popper.js
-js/theme.js
+js/**.min.js

.travis.yml

@@ -93,4 +93,4 @@ script:
     # -n flag: Do not print warnings (shortcut for --warning-severity=0)
     # --standard: Use WordPress as the standard.
     # --extensions: Only sniff PHP files.
-    - $WP_DEVELOP_DIR/php-codesniffer/scripts/phpcs -p -s -v -n . --standard=./codesniffer.ruleset.xml --extensions=php --ignore=*/woocommerce/*,*/src/*
+    - $WP_DEVELOP_DIR/php-codesniffer/scripts/phpcs -p -s -v -n . --standard=./codesniffer.ruleset.xml --extensions=php

package.json

@@ -30,7 +30,6 @@
     "bootstrap": "4.0.0",
     "browser-sync": "^2.22.0",
     "del": "^3.0.0",
-    "eslint": "^4.16.0",
     "font-awesome": "^4.7.0",
     "gulp": "^3.9.1",
     "gulp-clean-css": "^3.9.1",
@@ -53,8 +52,5 @@
     "popper.js": "^1.13.0",
     "run-sequence": "^2.2.1",
     "undescores-for-npm": "^1.0.0"
-  },
-  "devDependencies": {
-    "eslint-config-google": "^0.9.1"
   }
 }