Remove another CLA reference (MobileNativeFoundation#80)

Signed-off-by: Keith Smiley <[email protected]>

Author: keith

CONTRIBUTING.md

@@ -6,5 +6,4 @@
 1. Add tests if you are adding a feature or fixing a bug.
 1. Make your tests pass.
 1. Add an entry to the `CHANGELOG.md`
-1. Sign our [Contributor License Agreement (CLA)](https://oss.lyft.com/cla)
 1. Push to your fork and submit a pull request!