tools: delete xsview

This was apparently a Qt xenstore viewer. It hasn't been touched since it was
first committed in 2007 and I can't beleive anyone is actually using even if
it still happens to work.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Matt Wilson <msw@amazon.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>

tools/python/setup.py

@@ -133,7 +133,6 @@ setup(name            = 'xen',
       packages        = ['xen',
                          'xen.lowlevel',
                          'xen.sv',
-                         'xen.xsview',
                          ] + xend_packages,
       ext_package = "xen.lowlevel",
       ext_modules = modules