Update appveyor.yml

Author: Andrew Theken

appveyor.yml

@@ -37,7 +37,6 @@ configuration: Release
 
 build:
   project: ./Mustachio.sln  # path to Visual Studio solution or project
-  publish_nuget: true              # package projects with .nuspec files and push to artifacts
 
   # MSBuild verbosity level
   # quiet|minimal|normal|detailed
@@ -79,4 +78,4 @@ notifications:
   - provider: HipChat
     auth_token:
       secure: OqT/6oTT5wCUSt4rajfZ/Ye1K0lz8nUJzj2KFtoIwmMo6QtjSuGIhf/RGIu0uXIr
-    room: Postmark
+    room: Postmark