onclite: Use LLVM binutils and default clang

Now our kernel can be compiled with it.

This reverts c361ab08 and 65e16943

Change-Id: I3b9f0b1e83f9307ce8df33e33a709f799c7ef9aa

BoardConfig.mk

@@ -57,10 +57,6 @@ TARGET_KERNEL_CONFIG := onclite-perf_defconfig
 BOARD_KERNEL_SEPARATED_DTBO := true
 BOARD_DTBOIMG_PARTITION_SIZE := 8388608
 TARGET_KERNEL_VERSION := 4.9
-# Kernel - Build
-TARGET_KERNEL_CLANG_VERSION := r416183b
-TARGET_KERNEL_CLANG_PATH := $(abspath .)/prebuilts/clang/kernel/$(HOST_PREBUILT_TAG)/clang-$(TARGET_KERNEL_CLANG_VERSION)
-TARGET_KERNEL_LLVM_BINUTILS := false
 
 # ANT
 BOARD_ANT_WIRELESS_DEVICE := "vfs-prerelease"