This reverts commit 15e9dfaa.

Issue #1070120: Do not allow disabled displays to show up in views_get_applicable_views preventing them from showing up in hook_menu and hook_block.

#881468 by longwave: Improve performance by static caching results of argument validation because menu likes to double validate things.

#670308 by Mike Wacker: Make views_get_view() properly set disabled flag when retrieving default views.

#570558 by yhahn: Segment default views caching to conserve memory used by Views during normal operation.

#642328 by dboulet: Always include views.css since a site using Views probably uses it in blocks anyway.