Remove changes file for 24898-029 backports in maint-0.3.2

These patches were already merged, and so don't need a changes file
in these branches.

changes/bug24898-029

-  o Minor bugfixes (relay):
-    - Make the internal channel_is_client() function look at what sort
-      of connection handshake the other side used, rather than whether
-      the other side ever sent a create_fast cell to us. Backports part
-      of the fixes from bugs 22805 and 24898.
-