python3-psutil: Drop nativesdk class extension due to breakage

python3-psutil: Drop nativesdk class extension due to breakage

We're seeing warnings like:

WARNING: Nothing RPROVIDES 'nativesdk-procps' (but virtual:nativesdk:XXX/python3-psutil_5.9.4.bb RDEPENDS on or otherwise requires it)
WARNING: Nothing RPROVIDES 'nativesdk-python3-psutil-dev' (but virtual:nativesdk:XXX/python3-psutil_5.9.4.bb RDEPENDS on or otherwise requires it)
WARNING: Nothing RPROVIDES 'nativesdk-python3-psutil' (but virtual:nativesdk:XXX/python3-psutil_5.9.4.bb RDEPENDS on or otherwise requires it)

which means this likely has never been working in the first place. Drop it
until it is needed and fixed to work.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>