Revert "KVM: release anon file in failure path of vm creation"

This reverts commit 77ecc085fed1af1000ca719522977b960aa6da52.

Al Viro colorfully says: "You should *NEVER* use sys_close() on failure
exit paths like that.  Moreover, this kvm_put_kvm() becomes a double-put,
since closing the damn file will drop that reference to kvm.  Please,
revert.  anon_inode_getfd() should be used only when there's no possible
failures past its call".
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

virt/kvm/kvm_main.c

@@ -49,7 +49,6 @@
 #include <linux/slab.h>
 #include <linux/sort.h>
 #include <linux/bsearch.h>
-#include <linux/syscalls.h>
 
 #include <asm/processor.h>
 #include <asm/io.h>
@@ -3070,7 +3069,6 @@ static int kvm_dev_ioctl_create_vm(unsigned long type)
 
 	if (kvm_create_vm_debugfs(kvm, r) < 0) {
 		kvm_put_kvm(kvm);
-		sys_close(r);
 		return -ENOMEM;
 	}