remove appveyor

appveyor.yml

-version: '{build}'
-
-environment:
-  access_token:
-    secure: DOOS4g7CT8ctOgiMr62K56qQ1FO6s2ESpqNZlhf8F4nomemvvwxV/pRj9nbKmtjR
-
-platform: x86
-configuration: Release
-
-build: 
-    project: WindBot.sln
-    parallel: true
-
-after_build:
-  - mv bin\Release WindBot
-  - rm WindBot\WindBot.exe.config
-  - mv BotWrapper\bin\Release\Bot.exe .
-  - mv BotWrapper\bin\Release\bot.conf .
-  - 7z a WindBot.7z WindBot Bot.exe bot.conf
-
-test: off
-
-artifacts:
-  - path: WindBot.7z
-    name: WindBot
-
-deploy:
-    description: 'Automatic build by Appveyor.'
-    provider: GitHub
-    auth_token: $(access_token)
-    force_update: true
-    on:
-        appveyor_repo_tag: true