patch 8.2.4727: unused code

Problem:    Unused code.
Solution:   Remove code and add #ifdefs. (Dominique Pellé, closes #10136)
diff --git a/src/version.c b/src/version.c
index 8b4f302..ff5f399 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4727,
+/**/
     4726,
 /**/
     4725,