does not make sense to pull when syncing to a version

Author: tgrogers

gpu-simulator/setup_environment.sh

@@ -38,9 +38,6 @@ fi
 if [ ! -d "$ACCELSIM_ROOT/gpgpu-sim" ] ; then
     git clone https://github.com/gpgpu-sim/gpgpu-sim_distribution.git  $ACCELSIM_ROOT/gpgpu-sim
     git -C $ACCELSIM_ROOT/gpgpu-sim/ checkout v4.0.1
-else
-    git -C $ACCELSIM_ROOT/gpgpu-sim/ checkout v4.0.1
-    git -C $ACCELSIM_ROOT/gpgpu-sim/ pull
 fi
 
 source $ACCELSIM_ROOT/gpgpu-sim/setup_environment $ACCELSIM_CONFIG