patch 8.1.1901: the +insert_expand feature is not always available

Problem:    The +insert_expand feature is not always available.
Solution:   Graduate the +insert_expand feature.
diff --git a/src/misc2.c b/src/misc2.c
index 8cdd0d4..cf8b5df 100644
--- a/src/misc2.c
+++ b/src/misc2.c
@@ -1065,7 +1065,7 @@
     spell_free_all();
 # endif
 
-# if defined(FEAT_INS_EXPAND) && defined(FEAT_BEVAL_TERM)
+# if defined(FEAT_BEVAL_TERM)
     ui_remove_balloon();
 # endif
 
@@ -1117,9 +1117,7 @@
     free_search_patterns();
     free_old_sub();
     free_last_insert();
-# if defined(FEAT_INS_EXPAND)
     free_insexpand_stuff();
-# endif
     free_prev_shellcmd();
     free_regexp_stuff();
     free_tag_stuff();