retire _PROTOTYPE

. only good for obsolete K&R support
	. also remove a stray ansi.h and the proto cmd

servers/ext2/table.c

@@ -12,7 +12,7 @@
 #include "buf.h"
 #include "super.h"
 
-PUBLIC _PROTOTYPE (int (*fs_call_vec[]), (void) ) = {
+PUBLIC int (*fs_call_vec[])(void) = {
     no_sys,             /* 0   not used */
     no_sys,             /* 1   */       /* Was: fs_getnode */
     fs_putnode,         /* 2   */