Revert "KVM: x86/mmu: Zap only TDP MMU leafs in kvm_zap_gfn_range()"

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2074832



commit 873dd122
Author: Paolo Bonzini <pbonzini@redhat.com>
Date:   Fri Mar 18 12:30:32 2022 -0400

    Revert "KVM: x86/mmu: Zap only TDP MMU leafs in kvm_zap_gfn_range()"

    This reverts commit cf3e2642.

    Multi-vCPU Hyper-V guests started crashing randomly on boot with the
    latest kvm/queue and the problem can be bisected the problem to this
    particular patch. Basically, I'm not able to boot e.g. 16-vCPU guest
    successfully anymore. Both Intel and AMD seem to be affected. Reverting
    the commit saves the day.

Reported-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>