See discussion in https://bugzilla.redhat.com/show_bug.cgi?id=859036#c18:
The same option is available from the webadmin portal as well, I don't know if this bug should be cloned to that component or if it belongs to something lower in the stack.
we have an alternative mapping to Ctrl-Alt-End now so let's get rid of this finally
Sorry for my laconism ;) what's the status? can we also remove the client bits too? I guess, since there is pm_ack+ here
Hi, the pass c-a-d had been removed from the engine some time ago. Closing as a dupe.
(About removing functionality from virt-viewer - I'm afraid I can't answer this question :( It depends on whether new virt-viewer is supposed to support old engine [with 'pass c-a-d' option].)
*** This bug has been marked as a duplicate of bug 1029441 ***