Remove React from peers of react-dom-factories

Fixes #10358

Author: gaearon

packages/react-dom-factories/package.json

@@ -12,9 +12,6 @@
  "url": "https://github.com/facebook/react/issues"
  },
  "homepage": "https://facebook.github.io/react/",
- "peerDependencies": {
- "react": "^15.6.0-rc.1"
- },
  "files": [
  "LICENSE",
  "PATENTS",