bblayers: drop toolchain-layer
bblayers: drop toolchain-layer

We don't need gcc 4.6 and it's broken anyway.

 Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
96boards/oe-rpb-manifest,Angstrom-distribution/angstrom-manifest,twoerner/angstrom-manifest,ndechesne/qcom-oe-manifest,koenkooi/angstrom-manifest,linaro-home/lhg-oe-manifests