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-rw-r--r--src/mame/machine/at.h1
1 files changed, 0 insertions, 1 deletions
diff --git a/src/mame/machine/at.h b/src/mame/machine/at.h
index d797b7d25c4..a24bc316f44 100644
--- a/src/mame/machine/at.h
+++ b/src/mame/machine/at.h
@@ -24,7 +24,6 @@ public:
DECLARE_READ8_MEMBER(portb_r);
DECLARE_WRITE8_MEMBER(portb_w);
DECLARE_WRITE8_MEMBER(write_rtc);
- DECLARE_WRITE_LINE_MEMBER(iochck_w);
DECLARE_WRITE_LINE_MEMBER(shutdown);