Remove unused lge/mako ARCH_ARM_HAVE_TLS_REGISTER.

Change-Id: I7d26582e20a7a0d31613280389bb7d764e279371
diff --git a/BoardConfig.mk b/BoardConfig.mk
index 45b29a2..9ef469b 100644
--- a/BoardConfig.mk
+++ b/BoardConfig.mk
@@ -22,7 +22,6 @@
 TARGET_ARCH := arm
 TARGET_ARCH_VARIANT := armv7-a-neon
 TARGET_CPU_VARIANT := krait
-ARCH_ARM_HAVE_TLS_REGISTER := true
 
 TARGET_NO_BOOTLOADER := true