test: Drop test-trace.sh and common.sh

The trace feature is now tested in CI so there is no need for these old
script. Also they don't work. Drop them.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Tom Rini <trini@konsulko.com> # rpi_3, rpi_4, rpi_arm64, am64x_evm_a53, am64-sk
2 files changed