Kernel: Remove unnecessary raise syscall

libc/include/sys/syscall.h

@@ -38,7 +38,6 @@ __BEGIN_DECLS
 #define SYS_PIPE 35
 #define SYS_DUP 36
 #define SYS_DUP2 37
-#define SYS_RAISE 38
 #define SYS_KILL 39
 #define SYS_SIGNAL 40
 #define SYS_SIGNAL_DONE 41

libc/signal.cpp

@@ -4,7 +4,8 @@
 
 int raise(int sig)
 {
-	return syscall(SYS_RAISE, sig);
+	// FIXME: won't work after multithreaded
+	return kill(getpid(), sig);
 }
 
 int kill(pid_t pid, int sig)