Remove Windows tests

We don't want to install wine on travis, as it slows down the whole CI
process.

We also shouldn't be testing if we can build the electron app,
and instead our unit tests should test that we pass the correct
parameters to electron packager.

TODO ^

.travis.yml

@@ -10,10 +10,6 @@ node_js:
   - '5'
   - '4'
 
-before_install:
-  # Install wine
-  - sudo add-apt-repository -y ppa:wine/wine-builds && sudo apt-get update && sudo apt-get install -y --install-recommends winehq-devel
-
 install:
   - npm run dev-up
 

test/module/indexSpec.js

@@ -6,7 +6,7 @@ import async from 'async';
 
 import nativefier from './../../lib/index';
 
-const PLATFORMS = ['darwin', 'linux', 'win32'];
+const PLATFORMS = ['darwin', 'linux'];
 tmp.setGracefulCleanup();
 const assert = chai.assert;