msys-core: Also remove the strtol patch which only patches kill.cc

The patch which adds kill.cc was removed in 6882b73.

Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
Do not package kill.exe anymore

Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
msys-core: Bump the revision number and issue date for the next release

Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>