KVM: s390: remove superfluous save_fpu_regs() call

The save_fpu_regs() call in kvm_arch_vcpu_ioctl_get_fpu() is pointless: it
will save the current user space fpu context to the thread's save area. But
the code is accessing only the vcpu's save are / mapped register area,
which in this case are not the same.

Therefore remove the confusing call.
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>

arch/s390/kvm/kvm-s390.c

@@ -4331,8 +4331,6 @@ int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
 {
 	vcpu_load(vcpu);
 
-	/* make sure we have the latest values */
-	save_fpu_regs();
 	if (MACHINE_HAS_VX)
 		convert_vx_to_fp((freg_t *) fpu->fprs,
 				 (__vector128 *) vcpu->run->s.regs.vrs);