watchdog: it87_wdt: Remove redundant max_units setting

Commit 893dc8b5 ("watchdog: it87: Drop support for resetting watchdog
though CIR and Game port") removed the try_gameport variable, and left
max_units setting redundant.

To clean up the code, this patch removes this redundant setting.
Signed-off-by: Werner Fischer <devlists@wefi.net>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20231213094525.11849-2-devlists@wefi.netSigned-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>

drivers/watchdog/it87_wdt.c

@@ -274,10 +274,6 @@ static int __init it87_wdt_init(void)
 	case IT8712_ID:
 		max_units = (chip_rev < 8) ? 255 : 65535;
 		break;
-	case IT8716_ID:
-	case IT8726_ID:
-		max_units = 65535;
-		break;
 	case IT8607_ID:
 	case IT8613_ID:
 	case IT8620_ID:
@@ -287,9 +283,11 @@ static int __init it87_wdt_init(void)
 	case IT8655_ID:
 	case IT8665_ID:
 	case IT8686_ID:
+	case IT8716_ID:
 	case IT8718_ID:
 	case IT8720_ID:
 	case IT8721_ID:
+	case IT8726_ID:
 	case IT8728_ID:
 	case IT8772_ID:
 	case IT8783_ID: