We already enable target version for libsdl and use BBCLASSEXTEND
to enable nativesdk. No need to inherit nativesdk then.
(From OE-Core rev: f3945cf1a9d33438afbcb28ee35edc10b9d047d9)
Signed-off-by: Jiajun Xu <jiajun.xu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>