[FIX] Error in vrDisplay.destroy() when no camera set up.
[FIX] Error in vrDisplay.destroy() when no camera set up.

MicroWorldwide/PlayCanvas,H1Gdev/engine,MicroWorldwide/PlayCanvas,guycalledfrank/engine,guycalledfrank/engine,aidinabedi/playcanvas-engine,playcanvas/engine,sereepap2029/playcanvas,H1Gdev/engine,sereepap2029/playcanvas,playcanvas/engine,aidinabedi/playcanvas-engine,sereepap2029/playcanvas