patch 8.2.1911: tiny build fails

Problem:    Tiny build fails.
Solution:   Add #ifdef.
diff --git a/src/insexpand.c b/src/insexpand.c
index a0aa102..87aaf7d 100644
--- a/src/insexpand.c
+++ b/src/insexpand.c
@@ -4067,10 +4067,11 @@
 	}
 	else
 	{
+#if defined(FEAT_COMPL_FUNC) || defined(FEAT_EVAL)
 	    // Update completion sequence number when needed.
 	    if (compl_curr_match->cp_number == -1)
 		ins_compl_update_sequence_numbers();
-
+#endif
 	    // The match should always have a sequence number now, this is
 	    // just a safety check.
 	    if (compl_curr_match->cp_number != -1)