We don't use "grayed out" but use "show/hide" for those appliable buttons
in the image details page.
[Yocto #2143]
(Bitbake rev: df1564d78d081ceab51d628d227e57b7a197259b)
Signed-off-by: Shane Wang <shane.wang@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>