[PATCH v1] docs: Remove icn= ISDN parameter

[Costa Shulyupin]

The ICN ISDN driver was removed in commit 02bbd9802da7
("staging: i4l: delete the whole thing"), but the icn= kernel
parameter documentation was left behind.

Assisted-by: Claude:claude-opus-4-6
Signed-off-by: Costa Shulyupin <costa.shul@xxxxxxxxxx>
---
 Documentation/admin-guide/kernel-parameters.txt | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 41c657cd362c..6e21d8638d77 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -2245,9 +2245,6 @@ Kernel parameters
 			syscalls, essentially overriding IA32_EMULATION_DEFAULT_DISABLED at
 			boot time. When false, unconditionally disables IA32 emulation.
 
-	icn=		[HW,ISDN]
-			Format: <io>[,<membase>[,<icn_id>[,<icn_id2>]]]
-
 
 	idle=		[X86,EARLY]
 			Format: idle=poll, idle=halt, idle=nomwait
-- 
2.53.0