patch 9.0.1997: Some unused code in move.c and string.c

Problem:  Some unused code in move.c and string.c
Solution: Remove it

closes: #13288

Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: dundargoc <gocdundar@gmail.com>
diff --git a/src/version.c b/src/version.c
index ec25a12..a946279 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1997,
+/**/
     1996,
 /**/
     1995,