Remove cache invalidation from upgrade script

upgrade.sh

@@ -97,11 +97,6 @@ COMMAND="python3 netbox/manage.py clearsessions"
 echo "Removing expired user sessions ($COMMAND)..."
 eval $COMMAND || exit 1
 
-# Clear all cached data
-COMMAND="python3 netbox/manage.py invalidate all"
-echo "Clearing cache data ($COMMAND)..."
-eval $COMMAND || exit 1
-
 if [ -v WARN_MISSING_VENV ]; then
   echo "--------------------------------------------------------------------"
   echo "WARNING: No existing virtual environment was detected. A new one has"