x86/kvm: Remove unused virt to phys translation in kvm_guest_cpu_init()

Presumably, this was introduced due to a conflict resolution with
commit ef68017e ("x86/kvm: Handle async page faults directly through
do_page_fault()"), given that the last posted version [1] of the blamed
commit was not based on the aforementioned commit.

[1] https://lore.kernel.org/kvm/20200525144125.143875-9-vkuznets@redhat.com/



Fixes: b1d40575 ("KVM: x86: Switch KVM guest to using interrupts for page ready APF delivery")
Signed-off-by: Rafael Mendonca <rafaelmendsr@gmail.com>
Message-Id: <20221021020113.922027-1-rafaelmendsr@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>