test/py: efi_secboot: remove all "re.search"

Currently, we don't use any regular expression in matching outputs from
U-Boot. Since its use is just redundant, we can remove all.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
3 files changed