[tests] Removed hhvm-nightly due to build error
[tests] Removed hhvm-nightly due to build error

ctkjose/Ratchet,cesarmarinhorj/Ratchet,vinod1988/Ratchet,sudarshan955/Ratchet,zjien/Ratchet,b-viguier/Ratchet,IRlyDontKnow/Ratchet,naroga/Ratchet,mbonneau/Ratchet,Jumplead/Ratchet,ratchetphp/Ratchet,KSDaemon/Ratchet,Nek-/Ratchet,krageon/Ratchet