fixed copy elision error in clang 3.8

Change-Id: I31f95667c309c80ade1289f0923e261e51bfa3a1
diff --git a/y2014/autonomous/auto.cc b/y2014/autonomous/auto.cc
index e7f7697..e443f6b 100644
--- a/y2014/autonomous/auto.cc
+++ b/y2014/autonomous/auto.cc
@@ -212,7 +212,7 @@
       distance - theta * control_loops::drivetrain::kRobotRadius;
   right_initial_position +=
       distance + theta * control_loops::drivetrain::kRobotRadius;
-  return ::std::move(drivetrain_action);
+  return drivetrain_action;
 }
 
 void Shoot() {