Remove dead M-Systems Disk on Chip code

DOC support has been disabled by default for many years. The write function
does nothing but print text. It has a call to write_page_md2802() commented
out, but that function does not exist. This is dead code with ugly #ifdefs.

Updates README to reflect that there was a time when there was code, but it
didn't work. Removes M-Systems #defines and also includes svn rm msys_doc.*

Corresponding to flashrom svn r269 and coreboot v2 svn r3382.

Signed-off-by: Peter Stuge <peter@stuge.se>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
6 files changed