local: remove all troves related to a missing capsule, not just the first (RCE-1458)
local: remove all troves related to a missing capsule, not just the first (RCE-1458)

Also fixes a regression from cdf594ff3b02

fedora-conary/conary,fedora-conary/conary,fedora-conary/conary,fedora-conary/conary,fedora-conary/conary