remove peerDependencies

remove peerDependencies from package.json because of npm 7+

Author: keremoge

package.json

@@ -33,9 +33,5 @@
     "create-react-class": "15.6.3",
     "flow-bin": "^0.109.0",
     "prop-types": "^15.7.2"
-  },
-  "peerDependencies": {
-    "react-native": "^0.59.5",
-    "react-native-windows": "^0.57.2"
   }
 }