efi_selftest: make HII test data static

Variables that are only used locally in a module should not be exported.

* Make the HII test data variables static.
* Remove unused GUIDs.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
1 file changed