ENYO-287 Removed reference to layout/flex

Issue
---
deploy.json included reference to removed layout/flex library

Cause
---
layout/flex library removed

Fix
---
Update deploy.json

Enyo-DCO-1.1-Signed-off-by: Roy Sutton <roy.sutton@lge.com>
Merge pull request #64 from enyojs/ENYO-287-roysutton

ENYO-287 Removed reference to layout/flex

Reviewed-By: Ryan Duffy (ryan.duffy@lge.com)
Integrated-By: Aaron Tam (aaron.tam@lge.com)