main(): don't dupe open_image_dir() error message

In case open_image_dir() fails, it prints an error why,
so there is no need to print it one more time.
Signed-off-by: Kir Kolyshkin <kir@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

crtools.c

@@ -306,11 +306,9 @@ int main(int argc, char *argv[])
 	/* We must not open imgs dir, if service is called */
 	if (strcmp(argv[optind], "service")) {
 		ret = open_image_dir(imgs_dir);
-		if (ret < 0) {
-			pr_perror("Can't open imgs directory");
+		if (ret < 0)
 			return 1;
 	}
-	}
 
 	if (chdir(work_dir)) {
 		pr_perror("Can't change directory to %s", work_dir);