sstrip is causing more trouble and grief than tolerable.
It is broken at least on PPC. It does not build on non-ELF
systems (eg. mingw32, MacOS-X...). Plus, it is easy to
install.
Hide it behind OBSOLETE.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
sstrip is now alone in its 'tools' menu, and we will probably never gain
any other 'tool'. Besides, sstrip is just strip, but a little bit more
agressive, so it deserves going to the 'binary utilities' menu.