patch 8.1.0346: building with Aap is outdated and unused

Problem:    Building with Aap is outdated and unused.
Solution:   Remove the Aap build files.
diff --git a/src/version.c b/src/version.c
index 5d4845d..b0ed507 100644
--- a/src/version.c
+++ b/src/version.c
@@ -795,6 +795,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    346,
+/**/
     345,
 /**/
     344,