Revert to using standard DSCResource.tests

Author: PlagueHO

appveyor.yml

@@ -3,8 +3,7 @@
 #---------------------------------#
 version: 1.9.{build}.0
 install:
-    - git clone -b Issue-86 https://github.com/PlagueHO/DscResource.Tests
-    #- git clone https://github.com/PowerShell/DscResource.Tests
+    - git clone https://github.com/PowerShell/DscResource.Tests
 
     - ps: |
         Import-Module "$env:APPVEYOR_BUILD_FOLDER\DscResource.Tests\AppVeyor.psm1"