[ci] Remove node 0.12

.travis.yml

@@ -3,7 +3,6 @@ node_js:
   - "7"
   - "6"
   - "4"
-  - "0.12"
 os:
   - osx
 matrix:
@@ -21,7 +20,3 @@ matrix:
       os: linux
       sudo: false
       dist: trusty
-    - node_js: "0.12"
-      os: linux
-      sudo: false
-      dist: trusty

appveyor.yml

@@ -3,7 +3,6 @@ environment:
     - nodejs_version: "7"
     - nodejs_version: "6"
     - nodejs_version: "4"
-    - nodejs_version: "0.12"
 platform:
   - x86
   - x64
@@ -11,7 +10,6 @@ matrix:
   fast_finish: true
 install:
   - ps: Install-Product node $env:nodejs_version $env:platform
-  - if %nodejs_version% equ 0.12 npm -g install npm@latest
   - npm install
 test_script:
   - node --version