[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>
diff --git a/drivers/isdn/hisax/isurf.c b/drivers/isdn/hisax/isurf.c
index af5171d..33747af 100644
--- a/drivers/isdn/hisax/isurf.c
+++ b/drivers/isdn/hisax/isurf.c
@@ -122,7 +122,7 @@
 	return IRQ_HANDLED;
 }
 
-void
+static void
 release_io_isurf(struct IsdnCardState *cs)
 {
 	release_region(cs->hw.isurf.reset, 1);