vboot/ui: Remove unnecessary console logs in log.c

Remove a UI_INFO() in layout.c/ui_get_textbox_dimensions() and simplify
the logs in log.c.

BUG=b:171857193
BRANCH=none
TEST=Build locally, observe that the logs in firmware log screen and
     quick memory test become lower.

Signed-off-by: Hsuan Ting Chen <roccochen@chromium.org>
Change-Id: I443124b3d77b831536f1a82b03be28de4b63f2e7
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/depthcharge/+/2518955
Reviewed-by: Yu-Ping Wu <yupingso@chromium.org>
2 files changed