The __pycache__ is created based on python3 version in the build machine
and isn't a garantee to be useful on the system that runs exported tests.
(From OE-Core rev: 405e822e9da4b53ec9ee8019364fdcb13ccc2587)
Signed-off-by: Aníbal Limón <anibal.limon@linaro.org>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>