Remove unsupported Node.js versions from CI

.travis.yml

@@ -62,32 +62,11 @@ matrix:
             packages: [ 'clang-3.5']
      - os: linux
        compiler: clang
-       env: NODE_VERSION="7"
-       addons:
-         apt:
-            sources: [ 'ubuntu-toolchain-r-test','llvm-toolchain-precise-3.5', 'gcc-multilib', 'g++-multilib', 'libsqlite3-dev:i386' ]
-            packages: [ 'clang-3.5']
-     - os: linux
-       compiler: clang
        env: NODE_VERSION="6"
        addons:
          apt:
             sources: [ 'ubuntu-toolchain-r-test','llvm-toolchain-precise-3.5', 'gcc-multilib', 'g++-multilib', 'libsqlite3-dev:i386' ]
             packages: [ 'clang-3.5']
-     - os: linux
-       compiler: clang
-       env: NODE_VERSION="5"
-       addons:
-         apt:
-            sources: [ 'ubuntu-toolchain-r-test','llvm-toolchain-precise-3.5', 'gcc-multilib', 'g++-multilib', 'libsqlite3-dev:i386' ]
-            packages: [ 'clang-3.5']
-     - os: linux
-       compiler: clang
-       env: NODE_VERSION="4"
-       addons:
-         apt:
-            sources: [ 'ubuntu-toolchain-r-test','llvm-toolchain-precise-3.5', 'gcc-multilib', 'g++-multilib', 'libsqlite3-dev:i386' ]
-            packages: [ 'clang-3.5']
      # test building against external sqlite
      - os: linux
        compiler: clang
@@ -117,16 +96,7 @@ matrix:
        env: NODE_VERSION="8" # node abi 57
      - os: osx
        compiler: clang
-       env: NODE_VERSION="7" # node abi 51
-     - os: osx
-       compiler: clang
        env: NODE_VERSION="6" # node abi 48
-     - os: osx
-       compiler: clang
-       env: NODE_VERSION="5" # node abi 47
-     - os: osx
-       compiler: clang
-       env: NODE_VERSION="4" # node abi 46
      # electron Linux
      - os: linux
        compiler: clang

appveyor.yml

 environment:
   matrix:
-    - nodejs_version: 4
-      platform: x64
-      msvs_toolset: 12
-    - nodejs_version: 4
-      platform: x86
-      msvs_toolset: 12
-    - nodejs_version: 5
-      platform: x64
-    - nodejs_version: 5
-      platform: x86
     - nodejs_version: 6
       platform: x64
     - nodejs_version: 6
       platform: x86
-    - nodejs_version: 7
-      platform: x64
-    - nodejs_version: 7
-      platform: x86
     - nodejs_version: 8
       platform: x64
     - nodejs_version: 8
@@ -153,16 +139,6 @@ environment:
       NODE_RUNTIME: electron
       NODE_RUNTIME_VERSION: 1.8.4
       TOOLSET_ARGS: --dist-url=https://electronjs.org/headers
-    - nodejs_version: 7
-      platform: x64
-      NODE_RUNTIME: electron
-      NODE_RUNTIME_VERSION: 1.7.12
-      TOOLSET_ARGS: --dist-url=https://electronjs.org/headers
-    - nodejs_version: 7
-      platform: x86
-      NODE_RUNTIME: electron
-      NODE_RUNTIME_VERSION: 1.7.12
-      TOOLSET_ARGS: --dist-url=https://electronjs.org/headers
     - nodejs_version: 6
       platform: x64
       msvs_toolset: 12