git: eaa861ec1075 - stable/13 - pcmcsa_attach: eliminate write only variable unit

The branch stable/13 has been updated by imp:

URL: https://cgit.FreeBSD.org/src/commit/?id=eaa861ec1075e71d74dfcee91e7f02dbea1bd750

commit eaa861ec1075e71d74dfcee91e7f02dbea1bd750
Author:     Warner Losh <imp@FreeBSD.org>
AuthorDate: 2022-07-08 17:53:32 +0000
Commit:     Warner Losh <imp@FreeBSD.org>
CommitDate: 2022-10-02 04:25:54 +0000

    pcmcsa_attach: eliminate write only variable unit
    
    Sponsored by:           Netflix
    
    (cherry picked from commit 33985865b2d8eafc9fc1d065dc06344c9c95c56c)
---
 sys/dev/sound/pci/csapcm.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/sys/dev/sound/pci/csapcm.c b/sys/dev/sound/pci/csapcm.c
index a0b35c909931..41500e46e66d 100644
--- a/sys/dev/sound/pci/csapcm.c
+++ b/sys/dev/sound/pci/csapcm.c
@@ -777,13 +777,11 @@ pcmcsa_attach(device_t dev)
 {
 	struct csa_info *csa;
 	csa_res *resp;
-	int unit;
 	char status[SND_STATUSLEN];
 	struct ac97_info *codec;
 	struct sndcard_func *func;
 
 	csa = malloc(sizeof(*csa), M_DEVBUF, M_WAITOK | M_ZERO);
-	unit = device_get_unit(dev);
 	func = device_get_ivars(dev);
 	csa->binfo = func->varinfo;
 	/*