Remove Slack integration from appveyor.yml
Remove Slack integration from appveyor.yml

iakov/trikRuntime,iakov/trikRuntime,trikset/trikRuntime,trikset/trikRuntime,trikset/trikRuntime,iakov/trikRuntime,iakov/trikRuntime,iakov/trikRuntime,trikset/trikRuntime,trikset/trikRuntime