staging: lustre: mdc: Removed unneeded NULL check

Do not bother checking the return value of changelog_kuc_hdr()
against NULL since this value was dereferenced earlier.
Signed-off-by: Henri Doreau <henri.doreau@cea.fr>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4189
Reviewed-on: http://review.whamcloud.com/12919Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Faccini Bruno <bruno.faccini@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/lustre/mdc/mdc_request.c

@@ -1867,10 +1867,8 @@ static int mdc_changelog_send_thread(void *csdata)
 
 	/* Send EOF no matter what our result */
 	kuch = changelog_kuc_hdr(cs->cs_buf, sizeof(*kuch), cs->cs_flags);
-	if (kuch) {
-		kuch->kuc_msgtype = CL_EOF;
-		libcfs_kkuc_msg_put(cs->cs_fp, kuch);
-	}
+	kuch->kuc_msgtype = CL_EOF;
+	libcfs_kkuc_msg_put(cs->cs_fp, kuch);
 
 out:
 	fput(cs->cs_fp);