patch 9.0.0410: struct member cts_lnum is unused

Problem:    Struct member cts_lnum is unused.
Solution:   Delete it.
diff --git a/src/version.c b/src/version.c
index 746852a..0d6cc89 100644
--- a/src/version.c
+++ b/src/version.c
@@ -704,6 +704,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    410,
+/**/
     409,
 /**/
     408,