parse-resume.sh already contains all the code from resume-genrules.sh.
Also parse-resume.sh is executed before resume-genrules.sh, so there is
no point to keep the latter.
This fixes the following error messages:
dracut-initqueue: ln: failed to create symbolic link '/dev/resume': File exists
dracut-initqueue: rm: cannot remove '/lib/dracut/hooks/initqueue/settled/resume.sh': No such file or directory
dracut-initqueue: rm: cannot remove '/lib/dracut/hooks/initqueue/timeout/resume.sh': No such file or directory