Remove unused ndarray-fill dependency

Author: deathcap

package.json

@@ -17,7 +17,6 @@
     "voxel-shader": "^0.14.0",
     "gl-now": "^1.3.1",
     "ndarray": "^1.0.15",
-    "ndarray-fill": "^1.0.1",
     "game-shell-fps-camera": "^0.7.0",
     "voxel-stitch": "^0.10.0",
     "voxel-registry": "^0.8.1",