Revert "Ethernet Configuration Managment for JellyBean (3-3): build/"

This reverts commit 29856b0f6ef59e9c98c80e146d6ce070477722ed.
Revert "target/product/core.mk: Add aibd and aib to PRODUCT_PACKAGES."

This reverts commit 3084c3c4390b8d82075962cea317cffe8a28c9bf.