qdev: Remove legacy parsers for hex8/32/64 The hexNN property types have not been accepting values not prefixed by "0x" since QEMU 1.2. Parse those values as decimals now. Reviewed-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>