This was replaced with prepare/commit long before:
commit f7784b8ec9
KVM: split kvm_arch_set_memory_region into prepare and commit
Signed-off-by: Takuya Yoshikawa <yoshikawa_takuya_b1@lab.ntt.co.jp>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>