delete vendorsetup.sh

Change-Id: I049674dcb374697cf439bbcd17e042ce81521e73
add KERNEL_CUSTOM_TOOLCHAIN to Kernel inline build

Change-Id: Ifb11d064894d6d1f7b696fd5685092d7a5dcbeb0
Merge "add KERNEL_CUSTOM_TOOLCHAIN to Kernel inline build" into lollipop