Fix various warnings

code/tools/lcc/etc/lcc.c

@@ -53,10 +53,6 @@ extern char *stringf(const char *, ...);
 extern int suffix(char *, char *[], int);
 extern char *tempname(char *);
 
-#ifndef __sun
-extern int getpid(void);
-#endif
-
 extern char *cpp[], *include[], *com[], *as[],*ld[], inputs[], *suffixes[];
 extern int option(char *);