[PATCH --fixes] riscv: Remove SHADOW_OVERFLOW_STACK_SIZE macro

[Song Shuai]

The commit be97d0db5f44 ("riscv: VMAP_STACK overflow
detection thread-safe") got rid of `shadow_stack`,
so SHADOW_OVERFLOW_STACK_SIZE should be removed too.

Fixes: be97d0db5f44 ("riscv: VMAP_STACK overflow detection thread-safe")
Signed-off-by: Song Shuai <songshuaishuai@xxxxxxxxxxx>
---
 arch/riscv/include/asm/thread_info.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/riscv/include/asm/thread_info.h b/arch/riscv/include/asm/thread_info.h
index 574779900bfb..4856697c5f25 100644
--- a/arch/riscv/include/asm/thread_info.h
+++ b/arch/riscv/include/asm/thread_info.h
@@ -28,7 +28,6 @@
 
 #define THREAD_SHIFT            (PAGE_SHIFT + THREAD_SIZE_ORDER)
 #define OVERFLOW_STACK_SIZE     SZ_4K
-#define SHADOW_OVERFLOW_STACK_SIZE (1024)
 
 #define IRQ_STACK_SIZE		THREAD_SIZE
 
-- 
2.20.1