remove appveyor

appveyor.yml

-version: '{build}'
-
-platform: x86
-configuration: Release
-
-build: 
-    project: WindBot.sln
-    parallel: true
-
-after_build:
-  - mv -f bin\Release WindBot
-  - rm -rf WindBot\WindBot.exe.config
-  - mv -f BotWrapper\bin\Release\Bot.exe .
-  - mv -f BotWrapper\bin\Release\bot.conf .
-  - 7z a -mx9 WindBot.7z WindBot Bot.exe bot.conf
-test: off
-
-artifacts:
-  - path: WindBot.7z
-    name: WindBot
-
-deploy:
-  release: latest
-  description: 'Automatic build commit $(APPVEYOR_REPO_COMMIT) $(APPVEYOR_REPO_COMMIT_TIMESTAMP)'
-  provider: GitHub
-  force_update: true
-  auth_token:
-    secure: EQ9miMjfX/QAoBvgc6D+JLmHatLyxOEKZ/uo68QijxWW5Gp4MzB/pOH9+u2GlDVO
-  on:
-    branch: master