Updated libc

libc/runtime/crt1.c

@@ -1,15 +0,0 @@
-int main(int argc, char *argv[], char *envp[]);
-
-void _start()
-{
-    register int argc __asm__("rdi");
-    register char **argv __asm__("rsi");
-    register char **envp __asm__("rdx");
-    int mainret = main((int)argc, (char **)argv, (char **)envp);
-    __asm__ __volatile__("syscall"
-                         :
-                         : "a"(0), "D"(mainret)
-                         : "rcx", "r11", "memory");
-    return;
-}
-// C++ stuff