removed unneeded scripts

manifest.json

@@ -18,12 +18,10 @@
 			"js": [
 				"lib/hooks/hooks-frame.js",
 				"lib/browser-polyfill/chrome-browser-polyfill.js",
-				"extension/index.js",
 				"lib/single-file/util/doc-helper.js",
 				"lib/single-file/util/timeout.js",
-				"lib/fetch/content/fetch.js",
-				"lib/lazy/content/content-lazy-loader.js",
 				"lib/frame-tree/frame-tree.js",
+				"extension/index.js",
 				"extension/core/content/content-frame.js"
 			],
 			"all_frames": true,