Bug#504514: unnecessary dependencies in clisp-dev

[Sam Steingold]

Package: clisp-dev
Version: 1:2.44.1-4.1

http://packages.debian.org/sid/clisp-dev
lists far too many dependencies.
clisp-dev does not require a specific gcc version.
all it needs is some C compiler, not necessarily the one which was used to 
build clisp
there is absolutely no need for bison, debhelper, gettext, groff.
libffcall1-dev & libsigsegv-dev  are not needed - they are statically linked 
into lisp.a

x11-dev, xutils &c are not NECESSARY for modules built on top of the base set, 
so they are not required, just recommended.