syscall.h: Remove unused SYSCALL_MAX_ARGS

The "SYSCALL_MAX_ARGS" appears to have been unused since
commit 32d92586629a ("syscalls: Remove start and number from
syscall_set_arguments() args"), so remove it.

Fixes: 32d92586629a ("syscalls: Remove start and number from syscall_set_arguments() args")
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Will Deacon <will@kernel.org>

arch/arm/include/asm/syscall.h

diff --git a/arch/arm/include/asm/syscall.h b/arch/arm/include/asm/syscall.h
index 18b102a..574bbcc 100644
--- a/arch/arm/include/asm/syscall.h
+++ b/arch/arm/include/asm/syscall.h
@@ -92,8 +92,6 @@ static inline void syscall_set_nr(struct task_struct *task,
 		(nr & __NR_SYSCALL_MASK);
 }
 
-#define SYSCALL_MAX_ARGS 7
-
 static inline void syscall_get_arguments(struct task_struct *task,
 					 struct pt_regs *regs,
 					 unsigned long *args)

arch/arm64/include/asm/syscall.h

diff --git a/arch/arm64/include/asm/syscall.h b/arch/arm64/include/asm/syscall.h
index 712daa9..f385304 100644
--- a/arch/arm64/include/asm/syscall.h
+++ b/arch/arm64/include/asm/syscall.h
@@ -77,8 +77,6 @@ static inline void syscall_set_nr(struct task_struct *task,
 	}
 }
 
-#define SYSCALL_MAX_ARGS 6
-
 static inline void syscall_get_arguments(struct task_struct *task,
 					 struct pt_regs *regs,
 					 unsigned long *args)

arch/xtensa/include/asm/syscall.h

diff --git a/arch/xtensa/include/asm/syscall.h b/arch/xtensa/include/asm/syscall.h
index 7db3b48..bab7cdd 100644
--- a/arch/xtensa/include/asm/syscall.h
+++ b/arch/xtensa/include/asm/syscall.h
@@ -61,7 +61,6 @@ static inline void syscall_set_return_value(struct task_struct *task,
 	regs->areg[2] = (long) error ? error : val;
 }
 
-#define SYSCALL_MAX_ARGS 6
 #define XTENSA_SYSCALL_ARGUMENT_REGS {6, 3, 4, 5, 8, 9}
 
 static inline void syscall_get_arguments(struct task_struct *task,