tree: always set the host key

The current logic will not set the host secret to the controller when
the sysfs value and the value from the host object are identically.

Setting the secret from the host object to the controller is not what
this function is supposed to do. It should read the value from the
sysfs.

Signed-off-by: Daniel Wagner <wagi@kernel.org>

Author: igaw

src/nvme/tree.c

@@ -1984,9 +1984,7 @@ static void nvme_read_sysfs_dhchap(nvme_root_t r, nvme_ctrl_t c)
 	char *host_key, *ctrl_key;
 
 	host_key = nvme_get_ctrl_attr(c, "dhchap_secret");
-	if (host_key && c->s && c->s->h && c->s->h->dhchap_key &&
-			(!strcmp(c->s->h->dhchap_key, host_key) ||
-			 !strcmp("none", host_key))) {
+	if (host_key && !strcmp(host_key, "none")) {
 		free(host_key);
 		host_key = NULL;
 	}