[PATCH] drivers/isdn/hisax/: possible cleanups

This patch contains the following possible cleanups:
- make needlessly global code static
- remove the compiled but unused st5481_hdlc.{c,h}
- kill enternow.h
- enternow_pci.c: kill InByte/OutByte/BYTE
- isdnl2.c: kill FreeSkb
- remove or #if 0 the following unused functions:
  - config.c: IsdnCardState
  - ipacx.c: ipacx_new_ph
  - ipacx.c: dch_bh
  - ipacx.c: setup_ipacx
  - isdnl2.c: IsRR

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Kai Germaschewski <kai@germaschewski.name>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/isdn/hisax/hscx.c

@@ -151,7 +151,7 @@ hscx_l2l1(struct PStack *st, int pr, void *arg)
 	}
 }
 
-void
+static void
 close_hscxstate(struct BCState *bcs)
 {
 	modehscx(bcs, 0, bcs->channel);
@@ -203,7 +203,7 @@ open_hscxstate(struct IsdnCardState *cs, struct BCState *bcs)
 	return (0);
 }
 
-int
+static int
 setstack_hscx(struct PStack *st, struct BCState *bcs)
 {
 	bcs->channel = st->l1.bc;