Removed redundant crcmod install. (#77)

P4D2_2017_Fall/vm/user-bootstrap.sh

@@ -47,7 +47,6 @@ unset LDFLAGS
 cd ..
 # Install gRPC Python Package
 sudo pip install grpcio
-sudo pip install crcmod
 
 # BMv2 deps (needed by PI)
 git clone https://github.com/p4lang/behavioral-model.git
@@ -110,7 +109,7 @@ cd ..
 cd ..
 
 # Tutorials
-pip install crcmod
+sudo pip install crcmod
 git clone https://github.com/p4lang/tutorials
 sudo mv tutorials /home/p4
 sudo chown -R p4:p4 /home/p4/tutorials