Remove unneeded things

appveyor.yml

@@ -5,24 +5,11 @@ version: "{build}"
 init:
   - git config --global core.autocrlf input
 
-environment:
-  matrix:
-    - nodejs_version: '0.12.7'
-
 platform:
   - x86
   - x64
 
 install:
-  - ps: Update-NodeJsInstallation (Get-NodeJsLatestBuild $env:nodejs_version)
   - cmd: SET PATH=C:\Program Files (x86)\MSBuild\12.0\bin\;%PATH%
   - cmd: SET PATH=C:\python27;%PATH%
   - cmd: python script/cibuild
-
-test_script:
-  - node --version
-  - npm --version
-  - cmd: python script/cpplint.py
-  - cmd: python script/coffeelint.py
-
-build: off