KVM: remove redundant prototype of load_pdptrs()

This patch removes redundant prototype of load_pdptrs().

I found load_pdptrs() twice in kvm_host.h. Let's remove one.
Signed-off-by: NTakuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: NAvi Kivity <avi@redhat.com>

arch/x86/include/asm/kvm_host.h

@@ -670,7 +670,6 @@ void kvm_mmu_invlpg(struct kvm_vcpu *vcpu, gva_t gva);
 void kvm_enable_tdp(void);
 void kvm_disable_tdp(void);
 
-int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3);
 int complete_pio(struct kvm_vcpu *vcpu);
 bool kvm_check_iopl(struct kvm_vcpu *vcpu);