[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/ix1_micro.c

@@ -25,7 +25,7 @@
 #include "isdnl1.h"
 
 extern const char *CardType[];
-const char *ix1_revision = "$Revision: 2.12.2.4 $";
+static const char *ix1_revision = "$Revision: 2.12.2.4 $";
 
 #define byteout(addr,val) outb(val,addr)
 #define bytein(addr) inb(addr)
@@ -162,7 +162,7 @@ ix1micro_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 	return IRQ_HANDLED;
 }
 
-void
+static void
 release_io_ix1micro(struct IsdnCardState *cs)
 {
 	if (cs->hw.ix1.cfg_reg)