vm_pager: Remove references to KVME_TYPE_DEFAULT in the kernel

Keep the definition around since it's used by userspace.

Reviewed by:	alc, imp, kib
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D35791

sys/fs/procfs/procfs_map.c

@@ -167,7 +167,6 @@ procfs_doprocmap(PFS_FILL_ARGS)
 			case KVME_TYPE_PHYS:
 				type = "phys";
 				break;
-			case KVME_TYPE_DEFAULT:
 			case KVME_TYPE_SWAP:
 				type = "swap";
 				break;

sys/sys/user.h

@@ -487,7 +487,7 @@ struct kinfo_lockf {
  * another process as a series of entries.
  */
 #define	KVME_TYPE_NONE		0
-#define	KVME_TYPE_DEFAULT	1
+#define	KVME_TYPE_DEFAULT	1		/* no longer returned */
 #define	KVME_TYPE_VNODE		2
 #define	KVME_TYPE_SWAP		3
 #define	KVME_TYPE_DEVICE	4

sys/vm/vm_object.c

@@ -2578,8 +2578,7 @@ vm_object_list_handler(struct sysctl_req *req, bool swap_only)
 		if (vp != NULL) {
 			vref(vp);
 		} else if ((obj->flags & OBJ_ANON) != 0) {
-			MPASS(kvo->kvo_type == KVME_TYPE_DEFAULT ||
-			    kvo->kvo_type == KVME_TYPE_SWAP);
+			MPASS(kvo->kvo_type == KVME_TYPE_SWAP);
 			kvo->kvo_me = (uintptr_t)obj;
 			/* tmpfs objs are reported as vnodes */
 			kvo->kvo_backing_obj = (uintptr_t)obj->backing_object;