KVM: x86: Unexport cpuid_query_maxphyaddr()

Stop exporting cpuid_query_maxphyaddr() now that it's not being abused
by VMX.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200924194250.19137-3-sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

arch/x86/kvm/cpuid.c

@@ -186,7 +186,6 @@ int cpuid_query_maxphyaddr(struct kvm_vcpu *vcpu)
 not_found:
 	return 36;
 }
-EXPORT_SYMBOL_GPL(cpuid_query_maxphyaddr);
 
 /* when an old userspace process fills a new kernel module */
 int kvm_vcpu_ioctl_set_cpuid(struct kvm_vcpu *vcpu,