[hack] Remove ServerEnv.async around logging call
[hack] Remove ServerEnv.async around logging call

Summary: Logging is now entirely async, so this optimization is unnecessary

Reviewed By: @dlreeves

Differential Revision: D2493128

AprilArcus/flow,fletcherw/flow,Eyyub/flow,ForbesLindesay/flow,jgrund/flow,gabelevi/flow,MichaelDeBoey/flow,nmote/flow,claudiopro/flow,TiddoLangerak/flow,jamesgpearce/flow,mroch/flow,gabro/flow,chenglou/flow,d14b3l/flow,nmote/flow,jgrund/flow,shiftcars/flow,nmote/flow,fletcherw/flow,popham/flow,AprilArcus/flow,d14b3l/flow,facebook/flow,TiddoLangerak/flow,Eyyub/flow,claudiopro/flow,chenglou/flow,jeffmo/flow,OCamlPro/flow,claudiopro/flow,popham/flow,JonathanUsername/flow,jgrund/flow,jdelStrother/flow,shiftcars/flow,ylu1317/flow,graue/flow,jdelStrother/flow,jeffmo/flow,facebook/flow,cesarandreu/flow,chenglou/flow,jdelStrother/flow,jeffmo/flow,claudiopro/flow,shiftcars/flow,gabelevi/flow,AprilArcus/flow,jamesgpearce/flow,cesarandreu/flow,gabro/flow,mroch/flow,OCamlPro/flow,d14b3l/flow,ForbesLindesay/flow,gabelevi/flow,facebook/flow,cesarandreu/flow,ForbesLindesay/flow,samwgoldman/flow,gabelevi/flow,chenglou/flow,gabro/flow,jdelStrother/flow,jeffmo/flow,graue/flow,AgentME/flow,graue/flow,ForbesLindesay/flow,nmote/flow,JonathanUsername/flow,jamesgpearce/flow,samwgoldman/flow,jeffmo/flow,JonathanUsername/flow,facebook/flow,ylu1317/flow,jgrund/flow,facebook/flow,samwgoldman/flow,mroch/flow,AgentME/flow,AgentME/flow,shiftcars/flow,d14b3l/flow,gabro/flow,fletcherw/flow,jgrund/flow,chenglou/flow,popham/flow,cesarandreu/flow,MichaelDeBoey/flow,shiftcars/flow,jdelStrother/flow,TiddoLangerak/flow,mroch/flow,AgentME/flow,fletcherw/flow,ForbesLindesay/flow,nmote/flow,ylu1317/flow,shiftcars/flow,jamesgpearce/flow,popham/flow,samwgoldman/flow,Eyyub/flow,samwgoldman/flow,ForbesLindesay/flow,facebook/flow,popham/flow,nmote/flow,MichaelDeBoey/flow,samwgoldman/flow,popham/flow,OCamlPro/flow,fletcherw/flow,ylu1317/flow,jeffmo/flow,gabro/flow,JonathanUsername/flow,gabelevi/flow,AprilArcus/flow,AprilArcus/flow,mroch/flow,mroch/flow,popham/flow,AprilArcus/flow,jamesgpearce/flow,graue/flow,facebook/flow,AgentME/flow,nmote/flow,mroch/flow,d14b3l/flow,JonathanUsername/flow,gabelevi/flow,chenglou/flow,fletcherw/flow,MichaelDeBoey/flow,d14b3l/flow,JonathanUsername/flow,graue/flow,MichaelDeBoey/flow,gabro/flow,OCamlPro/flow,jamesgpearce/flow,ylu1317/flow,graue/flow,TiddoLangerak/flow,jgrund/flow,jamesgpearce/flow,JonathanUsername/flow,gabelevi/flow,TiddoLangerak/flow,claudiopro/flow,jdelStrother/flow,samwgoldman/flow,Eyyub/flow