folly/io/async/HHWheelTimer.cpp: remove decl of unused variable (trivial)

Summary:
In HHWheelTimer::scheduleTimeout, remove the declaration of the
unused variable, "prev".

Reviewed By: yfeldblum

Differential Revision: D3987409

fbshipit-source-id: 3a9291bf104e6865d608adfb6118609faa0aea96

diff --git a/folly/io/async/HHWheelTimer.cpp b/folly/io/async/HHWheelTimer.cpp
index ca372502b481f6b18c2c68cb48189068febc0370..55bc89552a4b6c731188cd3f99802990191125ad 100644 (file)
--- a/folly/io/async/HHWheelTimer.cpp
+++ b/folly/io/async/HHWheelTimer.cpp
@@ -150,7 +150,6 @@ void HHWheelTimer::scheduleTimeout(Callback* callback,
 
   callback->context_ = RequestContext::saveContext();
 
-  uint64_t prev = count_;
   count_++;
 
   callback->setScheduled(this, timeout);