Don't need nodejs on mesh nodes

src/freedombone-image-customise

@@ -1897,6 +1897,10 @@ image_setup_utils() {
 }
 
 image_install_nodejs() {
+    if [[ "$VARIANT" == "mesh" ]]; then
+        return
+    fi
+
     mesh_install_nodejs
     echo 'install_nodejs' >> "${rootdir}/root/${PROJECT_NAME}-completed.txt"
 }