removed spurious dependency

this was forgotten in f12c58c

Author: FND

package.json

@@ -27,7 +27,6 @@
 	},
 	"dependencies": {
 		"faucet-pipeline": "~1.0.0-rc.1",
-		"mkdirp": "^0.5.1",
 		"rollup": "^0.56.3",
 		"rollup-plugin-cleanup": "^2.0.0",
 		"rollup-plugin-commonjs": "^8.3.0",