patch 8.2.3020: unreachable code

Problem:    Unreachable code.
Solution:   Remove the code. (closes #8406)
diff --git a/src/version.c b/src/version.c
index adde02e..d1201f4 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3020,
+/**/
     3019,
 /**/
     3018,