Update rollup.config.js to remove build file from root directory (#16)

Author: rmi22186

rollup.config.js

@@ -2,22 +2,6 @@ import resolve from 'rollup-plugin-node-resolve';
 import commonjs from 'rollup-plugin-commonjs';
 
 export default [
-    {
-        input: 'src/FacebookEventForwarder.js',
-        output: {
-            file: 'FacebookEventForwarder.js',
-            format: 'iife',
-            exports: 'named',
-            name: 'mpFacebookKit',
-            strict: false
-        },
-        plugins: [
-            resolve({
-                browser: true
-            }),
-            commonjs()
-        ]
-    },
     {
         input: 'src/FacebookEventForwarder.js',
         output: {