If you remove an image with digest+tag, it will fail because it wont
find it in the reference store (where digest+tag -> digest). Let's
make sure we do the same in ImageDelete, stripping the tag if
digest+tag are present.
Signed-off-by: Vincent Demeester <vincent@sbr.pm>
Upstream-commit: 0fbfeb17e5a135cfd40ea07ab64d6e6bcf903e44
Component: engine