fixed.

Author: takaokouji

package-lock.json

@@ -119,7 +119,6 @@
     "scratch-render": "0.1.0-prerelease.20200228152431",
     "scratch-storage": "1.3.2",
     "scratch-svg-renderer": "0.2.0-prerelease.20200205003400",
-    "scratch-vm": "github:smalruby/scratch-vm#mesh_extension",
     "selenium-webdriver": "3.6.0",
     "shelljs": "^0.8.3",
     "startaudiocontext": "1.2.1",