Revert "Move deb to clang by default."

This reverts commit e711d87a0bcbb235cb5a36e73d081e4739b7278e.

Change-Id: Iac9de202e554ca06dc240c6139061ffdbefa1a91
diff --git a/BoardConfig.mk b/BoardConfig.mk
index 073b1a2..97629d5 100644
--- a/BoardConfig.mk
+++ b/BoardConfig.mk
@@ -24,7 +24,5 @@
 
 TARGET_RECOVERY_FSTAB = device/asus/deb/fstab.deb
 
-USE_CLANG_PLATFORM_BUILD := true
-
 -include vendor/asus/deb/BoardConfigVendor.mk
 include device/asus/flo/BoardConfigCommon.mk