Notice of intention to remove tests from KCrash and KNotifications

[Ben Cooksley]

Hi all,

The following is notice that the following tests have been identified
as causing issues to the operation of the CI system, and as such will
be subject to removal to ensure the smooth running of the CI system.

The below tests cause the execution workflow to indefinitely hang in
all instances when they are started, and thus cause the job in
question to indefinitely occupy the CI worker until manual action is
taken to correct the issue.

In the most recent instance, this wasn't corrected until 36 hours
after the blockage began, which has had the effect of stopping all
Windows builds across the entire CI system for the period in question
(a backlog which the system is currently working to clear)

This issue has been occurring at a minimum for several months now.

The offending tests are:
- 'kcrashtest' (executable at fault: test_crasher.exe) in KCrash
- 'KNotificationTest' (executable at fault: dbus-daemon.exe) in KNotifications

These issues have previously been raised, and as unfortunately no
solution has yet been found, the only option now is to remove these
tests from the codebase.

Regards,
Ben Cooksley
KDE Sysadmin