remove gypfile flag

Author: vunb

appveyor.yml

@@ -23,7 +23,6 @@ install:
   # install submodules
   - git submodule update --init
   # install modules
-  - npm install -g node-gyp node-pre-gyp node-pre-gyp-github
   - npm install --build-from-source
   # Check if we're building the latest tag, if so
   # then we publish the binaries if tests pass.

package.json

@@ -2,7 +2,6 @@
   "name": "fasttext",
   "version": "0.2.1",
   "description": "A nodejs binding for fasttext representation and classification",
-  "gypfile": true,
   "main": "index.js",
   "scripts": {
     "config": "node-pre-gyp configure --msvs_version=2015",