patch 8.2.4388: dead code in op_insert()

Problem:    Dead code in op_insert().
Solution:   Remove condition and else block. (closes #9782)
diff --git a/src/version.c b/src/version.c
index eca2c74..559b602 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4388,
+/**/
     4387,
 /**/
     4386,