[PATCH] ARC: cleanup dead ARC_CANT_LLSC option in Kconfig

Currently, the ARC_CANT_LLSC config option can never be enabled.
It is also not referenced anywhere else. So let's remove this dead code.

Note that I have only compile-tested these changes, because I do not have
the hardware to runtime test.

This dead code was found by kconfirm, a static analysis tool for Kconfig.

Signed-off-by: Julian Braha <[email protected]>
---
 arch/arc/Kconfig | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index 2ed7186c81c5..80e61175bf52 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -331,13 +331,9 @@ config ARC_FPU_SAVE_RESTORE
 	  for floating point exceptions and rounding modes. These are
 	  preserved across task context switch when enabled.
 
-config ARC_CANT_LLSC
-	def_bool n
-
 config ARC_HAS_LLSC
 	bool "Insn: LLOCK/SCOND (efficient atomic ops)"
 	default y
-	depends on !ARC_CANT_LLSC
 
 if ISA_ARCV2
 
-- 
2.55.0