Revert "[appveyor] test and build against latest node v4/5 versions"

  - Mysterious failures for now that @bergwerkgis will look into later

This reverts commit f1416bea.

appveyor.yml

@@ -16,40 +16,32 @@ environment:
     - nodejs_version: 0.12.7
       platform: x64
       msvs_toolset: 12
-    - nodejs_version: 4.4.1
+    - nodejs_version: 4.0.0
       platform: x64
       msvs_toolset: 12
-    - nodejs_version: 4.4.1
+    - nodejs_version: 4.0.0
       platform: x86
       msvs_toolset: 12
-    - nodejs_version: 5.9.1
+    - nodejs_version: 5.0.0
       platform: x64
       msvs_toolset: 12
-    - nodejs_version: 5.9.1
+    - nodejs_version: 5.0.0
       platform: x86
       msvs_toolset: 12
     # custom visual studio 2015 builds
     - nodejs_version: 0.10.40
-      platform: x64
-      msvs_toolset: 14
-      TOOLSET_ARGS: --dist-url=https://s3.amazonaws.com/mapbox/node-cpp11 --toolset=v140
-    - nodejs_version: 0.10.40
-      platform: x86
-      msvs_toolset: 14
-      TOOLSET_ARGS: --dist-url=https://s3.amazonaws.com/mapbox/node-cpp11 --toolset=v140
-    - nodejs_version: 4.4.1
       platform: x86
       msvs_toolset: 14
       TOOLSET_ARGS: --dist-url=https://s3.amazonaws.com/mapbox/node-cpp11 --toolset=v140
-    - nodejs_version: 4.4.1
+    - nodejs_version: 0.10.40
       platform: x64
       msvs_toolset: 14
       TOOLSET_ARGS: --dist-url=https://s3.amazonaws.com/mapbox/node-cpp11 --toolset=v140
-    - nodejs_version: 5.9.1
+    - nodejs_version: 0.12.7
       platform: x86
       msvs_toolset: 14
       TOOLSET_ARGS: --dist-url=https://s3.amazonaws.com/mapbox/node-cpp11 --toolset=v140
-    - nodejs_version: 5.9.1
+    - nodejs_version: 0.12.7
       platform: x64
       msvs_toolset: 14
       TOOLSET_ARGS: --dist-url=https://s3.amazonaws.com/mapbox/node-cpp11 --toolset=v140