Remove currently-unused doasync package

package-lock.json

@@ -2897,11 +2897,6 @@
       "resolved": "https://registry.npmjs.org/dns-prefetch-control/-/dns-prefetch-control-0.1.0.tgz",
       "integrity": "sha1-YN20V3dOF48flBXwyrsOhbCzALI="
     },
-    "doasync": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/doasync/-/doasync-2.0.0.tgz",
-      "integrity": "sha512-MRaZ9mvAnWoKFo5R1cMHa9Oi7uAM+9eujGClkicgwLzjdKPoL0ypAVDz58A77eTMNIodbTUG9Zcxzzm4/SFxPA=="
-    },
     "doctrine": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/doctrine/-/doctrine-2.1.0.tgz",

package.json

@@ -39,7 +39,6 @@
     "buefy": "^0.6.3",
     "compression": "^1.7.2",
     "cors": "^2.8.4",
-    "doasync": "^2.0.0",
     "express-detective": "github:aral/express-detective",
     "fs-extra": "^5.0.0",
     "helmet": "^3.12.0",