Deleted the now unused relax_bitmaps directory.
This redesign is discussed at https://mail.gna.org/public/relax-devel/2010-01/msg00054.html (Message-id: <7f080ed11001210133h32ab3304l64a0474ab7ac1a1c@...>).
Authored by: bugman 2010-01-22
Parent: [r10280]
Child: [r10282]