Index: kernel/arch/arm32/src/dummy.S
===================================================================
--- kernel/arch/arm32/src/dummy.S	(revision 73b3ecde730c3b8a3a21834f6c65380d45bf9991)
+++ kernel/arch/arm32/src/dummy.S	(revision af9dd1ed6f5d79cc098da33ff7131162b1c177a4)
@@ -38,10 +38,2 @@
 	mov	pc, lr
 FUNCTION_END(asm_delay_loop)
-
-# not used on ARM
-FUNCTION_BEGIN(sys_tls_set)
-FUNCTION_BEGIN(dummy)
-	mov pc, lr
-FUNCTION_END(dummy)
-FUNCTION_END(sys_tls_set)
-