KVM: x86 emulator: Remove set-but-unused cr4 from check_cr_write

This was probably copy&pasted from the cr0 case, but it's unneeded here.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
1 file changed