build2 npm phase was deprecated

package.json

@@ -7,8 +7,7 @@
   "module": "dist/esm/index.js",
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1",
-    "build": "rollup --config rollup.config.js --bundleConfigAsCjs",
-    "build2": "rollup --config rollup2.config.js --bundleConfigAsCjs"
+    "build": "rollup --config rollup.config.js --bundleConfigAsCjs"
   },
   "author": "Raphaël JOIE",
   "license": "UNLICENSED",