patch 8.2.1696: unused (duplicate) macros

Problem:    Unused (duplicate) macros.
Solution:   Remove the macros.
diff --git a/src/version.c b/src/version.c
index be62786..b503f3c 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1696,
+/**/
     1695,
 /**/
     1694,