Drop struct pt_regs * argument in compat_sys_execve()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

arch/tile/kernel/intvec_64.S

@@ -1194,7 +1194,6 @@ PTREGS_SYSCALL(sys_execve, r3)
 PTREGS_SYSCALL(sys_sigaltstack, r2)
 PTREGS_SYSCALL_SIGRETURN(sys_rt_sigreturn, r0)
 #ifdef CONFIG_COMPAT
-PTREGS_SYSCALL(compat_sys_execve, r3)
 PTREGS_SYSCALL(compat_sys_sigaltstack, r2)
 PTREGS_SYSCALL_SIGRETURN(compat_sys_rt_sigreturn, r0)
 #endif