KVM: selftests: Delete dead code in x86_64/vmx_tsc_adjust_test.c

Delete an unused struct definition in x86_64/vmx_tsc_adjust_test.c.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20221213001653.3852042-3-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

tools/testing/selftests/kvm/x86_64/vmx_tsc_adjust_test.c

@@ -49,11 +49,6 @@ enum {
 	NUM_VMX_PAGES,
 };
 
-struct kvm_single_msr {
-	struct kvm_msrs header;
-	struct kvm_msr_entry entry;
-} __attribute__((packed));
-
 /* The virtual machine object. */
 static struct kvm_vm *vm;