media: drxk: Fix comment typo

The double `for' is duplicated in the comment, remove one.
Signed-off-by: Jason Wang <wangborong@cdjrlc.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/dvb-frontends/drxk_hard.c

@@ -3516,7 +3516,7 @@ static int set_dvbt_standard(struct drxk_state *state,
 	status = write16(state, IQM_AF_CLP_LEN__A, 0);
 	if (status < 0)
 		goto error;
-	/* window size for for sense pre-SAW detection */
+	/* window size for sense pre-SAW detection */
 	status = write16(state, IQM_AF_SNS_LEN__A, 0);
 	if (status < 0)
 		goto error;