git: edfccce309a6 - main - powerpc: Remove unnecessary prototype.

The branch main has been updated by jhibbits:

URL: https://cgit.FreeBSD.org/src/commit/?id=edfccce309a6126e3108ba073eb8fb68e61fd883

commit edfccce309a6126e3108ba073eb8fb68e61fd883
Author:     Justin Hibbits <jhibbits@FreeBSD.org>
AuthorDate: 2024-11-27 19:41:45 +0000
Commit:     Justin Hibbits <jhibbits@FreeBSD.org>
CommitDate: 2024-11-27 23:47:55 +0000

    powerpc: Remove unnecessary prototype.
    
    This crept in with the interrupt rework back in 2019.
---
 sys/powerpc/powerpc/intr_machdep.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/sys/powerpc/powerpc/intr_machdep.c b/sys/powerpc/powerpc/intr_machdep.c
index e0eb06129dd1..6e8cb4febf28 100644
--- a/sys/powerpc/powerpc/intr_machdep.c
+++ b/sys/powerpc/powerpc/intr_machdep.c
@@ -221,7 +221,6 @@ intrcnt_add(const char *name, u_long **countp)
 	intrcnt_setname(name, idx);
 }
 
-extern void kdb_backtrace(void);
 static struct powerpc_intr *
 intr_lookup(u_int irq)
 {