chore(internet-header): make package private on release/v7 branch

Author: oliverschuerch

packages/internet-header/package.json

@@ -12,17 +12,14 @@
   "bugs": {
     "url": "https://github.com/swisspost/design-system/issues"
   },
+  "private": true,
   "main": "loader/index.cjs.js",
   "module": "loader/index.js",
   "es2017": "loader/index.es2017.js",
   "types": "loader/index.d.ts",
   "collection": "dist/collection/collection-manifest.json",
   "collection:main": "dist/collection/index.js",
   "unpkg": "dist/swisspost-internet-header/swisspost-internet-header.esm.js",
-  "publishConfig": {
-    "access": "public",
-    "tag": "latest-v7"
-  },
   "files": [
     "dist/",
     "loader/"