Get rid of redundant sys$spawn now that we have fork+exec.

LibC/Makefile

@@ -9,7 +9,6 @@ LIBC_OBJS = \
        stdio.o \
        unistd.o \
        string.o \
-       process.o \
        mman.o \
        dirent.o \
        stdlib.o \

LibC/process.cpp

@@ -1,14 +0,0 @@
-#include "process.h"
-#include "errno.h"
-#include <Kernel/Syscall.h>
-
-extern "C" {
-
-int spawn(const char* path, const char** args, const char** envp)
-{
-    int rc = Syscall::invoke(Syscall::SC_spawn, (dword)path, (dword)args, (dword)envp);
-    __RETURN_WITH_ERRNO(rc, rc, -1);
-}
-
-}
-

LibC/process.h

@@ -1,11 +0,0 @@
-#pragma once
-
-#include <sys/cdefs.h>
-#include <sys/types.h>
-
-__BEGIN_DECLS
-
-pid_t spawn(const char* path, const char** args, const char** envp);
-
-__END_DECLS
-