Disable site packages

The site packages were causing errors with setuptools and oslo.messaging

Change-Id: Id9ff0835323d242b95e94a8ae9d42676d72b036d
diff --git a/turbo_hipster/task_plugins/real_db_upgrade/nova_mysql_migrations.sh b/turbo_hipster/task_plugins/real_db_upgrade/nova_mysql_migrations.sh
index ee9c83c..f621cf0 100755
--- a/turbo_hipster/task_plugins/real_db_upgrade/nova_mysql_migrations.sh
+++ b/turbo_hipster/task_plugins/real_db_upgrade/nova_mysql_migrations.sh
@@ -209,8 +209,8 @@
 VENV_PATH=$WORKON_HOME/$1
 rm -rf $VENV_PATH
 source /usr/local/bin/virtualenvwrapper.sh
-mkvirtualenv $1
-toggleglobalsitepackages
+mkvirtualenv --no-site-packages $1
+#toggleglobalsitepackages
 export PYTHONPATH=$PYTHONPATH:$3
 
 if [ ! -e $VENV_PATH ]