bb.org: cleanup: libsoc is installed via apt-get install libsoc2

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
bb.org: cleanup: drop node 0.8.x

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
bb.org: cleanup: nodejs is now packaged, no reason to build it

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
bb.org: cleanup: drop node version variables

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>