Remove fibers.

package-lock.json

@@ -1744,14 +1744,6 @@
       "integrity": "sha1-PYpcZog6FqMMqGQ+hR8Zuqd5eRc=",
       "dev": true
     },
-    "fibers": {
-      "version": "5.0.0",
-      "resolved": "https://registry.npmjs.org/fibers/-/fibers-5.0.0.tgz",
-      "integrity": "sha512-UpGv/YAZp7mhKHxDvC1tColrroGRX90sSvh8RMZV9leo+e5+EkRVgCEZPlmXeo3BUNQTZxUaVdLskq1Q2FyCPg==",
-      "requires": {
-        "detect-libc": "^1.0.3"
-      }
-    },
     "figures": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/figures/-/figures-2.0.0.tgz",

package.json

@@ -64,7 +64,6 @@
     "bunyan": "^1.8.12",
     "csv-stringify": "^5.5.0",
     "es6-promise": "^4.2.4",
-    "fibers": "^5.0.0",
     "flatted": "^2.0.1",
     "gridfs-stream": "^0.5.3",
     "jszip": "^3.4.0",