net: dm9000: Drop unused dump_regs()

Drop unused function dump_regs() because it is unused.
No functional change.

Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Joe Hershberger <joe.hershberger@ni.com>
Cc: Ramon Fried <rfried.dev@gmail.com>
diff --git a/drivers/net/dm9000x.c b/drivers/net/dm9000x.c
index a99a901..223df94 100644
--- a/drivers/net/dm9000x.c
+++ b/drivers/net/dm9000x.c
@@ -122,23 +122,6 @@
 #define dm9000_inl(r) __raw_readl(r)
 #endif
 
-#ifdef CONFIG_DM9000_DEBUG
-static void
-dump_regs(void)
-{
-	debug("\n");
-	debug("NCR   (0x00): %02x\n", dm9000_ior(0));
-	debug("NSR   (0x01): %02x\n", dm9000_ior(1));
-	debug("TCR   (0x02): %02x\n", dm9000_ior(2));
-	debug("TSRI  (0x03): %02x\n", dm9000_ior(3));
-	debug("TSRII (0x04): %02x\n", dm9000_ior(4));
-	debug("RCR   (0x05): %02x\n", dm9000_ior(5));
-	debug("RSR   (0x06): %02x\n", dm9000_ior(6));
-	debug("ISR   (0xFE): %02x\n", dm9000_ior(DM9000_ISR));
-	debug("\n");
-}
-#endif
-
 static void dm9000_outblk_8bit(volatile void *data_ptr, int count)
 {
 	int i;