Remove unnecessary exports of HOST_SYS and BUILD_SYS in python-based recipes

They are no longer required to build python software.

Signed-off-by: Alexander Kanavin <alexander.kanavin@linux.intel.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

meta-networking/classes/waf-samba.bbclass

@@ -65,8 +65,6 @@ do_configure() {
                 -L ${STAGING_DIR_HOST} \
                 -E LD_LIBRARY_PATH=${libdir_qemu}:${base_libdir_qemu}"
 
-    export BUILD_SYS=${BUILD_SYS}
-    export HOST_SYS=${HOST_SYS}
     export BUILD_ARCH=${BUILD_ARCH}
     export HOST_ARCH=${HOST_ARCH}
     export STAGING_LIBDIR=${STAGING_LIBDIR}