(maint) mark appveyor.yml for deletion
(maint) mark appveyor.yml for deletion

puppetlabs/puppetlabs-mysql,DavidS/puppetlabs-mysql,markasammut/puppetlabs-mysql,markasammut/puppetlabs-mysql,DavidS/puppetlabs-mysql,simp/puppetlabs-mysql,simp/puppetlabs-mysql,puppetlabs/puppetlabs-mysql