revert: remove the npmjs.com handle (#30)

This injection to npmjs.com was only a POC, and we are not maintaining
it.

Now it starts to break my code, so I'm removing it from the code.

I think when we will re-implement it, we will do that with Vue, so this
code is useless.

gulpfile.js

@@ -108,16 +108,6 @@ async function buildBrowserExtension(browserType, version, fileExtension) {
     format: 'iife',
   });
 
-  // --------------
-  // content.npm.js
-  bundle = await rollup({
-    input: path.join(srcDirPath, 'content.npm.js'),
-  });
-  await bundle.write({
-    file: path.join(outputDirPath, 'content.npm.js'),
-    format: 'iife',
-  });
-
   // --------------
   // background.js
   bundle = await rollup({

src/manifest.chrome.json

@@ -16,10 +16,6 @@
     {
       "matches": ["*://stackoverflow.com/*"],
       "js": ["content.stackoverflow.js"]
-    },
-    {
-      "matches": ["*://www.npmjs.com/package/*"],
-      "js": ["content.npm.js"]
     }
   ],
   "background": {

src/manifest.firefox.json

@@ -10,10 +10,6 @@
     {
       "matches": ["*://stackoverflow.com/*"],
       "js": ["content.stackoverflow.js"]
-    },
-    {
-      "matches": ["*://www.npmjs.com/package/*"],
-      "js": ["content.npm.js"]
     }
   ],
   "background": {