Revert "Merge remote-tracking branch 'remotes/upstream/MP1-4420-BUG-Startup_resume_not_used_correctly_fix_multiple_POWERBROADCAST_V2' into 1.7.0Fork-BDJ"

This reverts commit b16835e643483c6cac160cf4836257c5305c07b3, reversing
changes made to cdcf494577817d93945c5d8d41099c14580f38ee.
Fork : Restore mediaportal/MediaPortal.Application/MediaPortal.cs based on latest working version.