kvm tools: remove redundancy between kvm_config and kvm

Remove some redundant members between struct kvm_config and struct kvm
since options are now contained within struct kvm.

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>

include/kvm/kvm.h

@@ -42,15 +42,12 @@ struct kvm {
 	int			nrcpus;		/* Number of cpus to run */
 
 	u32			mem_slots;	/* for KVM_SET_USER_MEMORY_REGION */
-
 	u64			ram_size;
 	void			*ram_start;
 	u64			ram_pagesize;
 
 	bool			nmi_disabled;
 
-	bool			single_step;
-
 	const char		*vmlinux;
 	struct disk_image       **disks;
 	int                     nr_disks;