ENYO-368: Remove all instances of a property when removing styles before node is attached.

Enyo-DCO-1.1-Signed-off-by: Aaron Tam <aaron.tam@lge.com>
Merge pull request #901 from enyojs/ENYO-368-aarontam-2.5.1-release

ENYO-368: Remove all instances of a property when removing styles before node is attached.

Reviewed-By: Art Dahm (art.dahm@lge.com)
Integrated-By: Cole Davis (cole.davis@lge.com)