Remove superfluous entry in package.json

Author: Matthias Bohlen

package.json

@@ -3,7 +3,6 @@
   "version": "7.1.0",
   "description": "React Unity WebGL provides an easy solution for embedding Unity WebGL builds in your React application, with two-way communication between your React and Unity application with advanced API's.",
   "main": "./dist/Exports.js",
-  "typings": "./dist/Exports.d.ts",
   "scripts": {
     "start": "tsc --watch",
     "compile": "tsc",