xen/build: Remove unreferenced figlet files

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Keir Fraser <keir@xen.org>
CC: Jan Beulich <JBeulich@suse.com>
CC: Tim Deegan <tim@xen.org>
Acked-by: Ian Campbell <Ian.Campbell@citrix.com>
CC: Ian Jackson <Ian.Jackson@eu.citrix.com>

.gitignore

@@ -316,7 +316,6 @@ xen/include/public/public
 xen/include/xen/*.new
 xen/include/xen/acm_policy.h
 xen/include/xen/compile.h
-xen/tools/figlet/figlet
 xen/tools/symbols
 xen/xsm/flask/include/av_perm_to_string.h
 xen/xsm/flask/include/av_permissions.h