patch 8.2.4836: Vim9: some lines not covered by tests

Problem:    Vim9: some lines not covered by tests.
Solution:   Remove dead code.  Add disassemble tests.
diff --git a/src/version.c b/src/version.c
index fa0303c..53afc37 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4836,
+/**/
     4835,
 /**/
     4834,