platform/x86: thinkpad-lmi: Remove unused display_name member from struct tlmi_pwd_setting

The struct tlmi_pwd_setting display_name member is initialized,
but never read. Remove it and the TLMI_PWDTYPE_MAXLEN define.

While at it also remove some other unused [MAX]LEN defines.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210531135911.82582-1-hdegoede@redhat.com

drivers/platform/x86/think-lmi.c

@@ -819,7 +819,6 @@ static int tlmi_analyze(void)
 		ret = -ENOMEM;
 		goto fail_clear_attr;
 	}
-	strscpy(tlmi_priv.pwd_admin->display_name, "admin", TLMI_PWDTYPE_MAXLEN);
 	strscpy(tlmi_priv.pwd_admin->kbdlang, "us", TLMI_LANG_MAXLEN);
 	tlmi_priv.pwd_admin->encoding = TLMI_ENCODING_ASCII;
 	tlmi_priv.pwd_admin->pwd_type = "pap";
@@ -836,7 +835,6 @@ static int tlmi_analyze(void)
 		ret = -ENOMEM;
 		goto fail_clear_attr;
 	}
-	strscpy(tlmi_priv.pwd_power->display_name, "power-on", TLMI_PWDTYPE_MAXLEN);
 	strscpy(tlmi_priv.pwd_power->kbdlang, "us", TLMI_LANG_MAXLEN);
 	tlmi_priv.pwd_power->encoding = TLMI_ENCODING_ASCII;
 	tlmi_priv.pwd_power->pwd_type = "pop";

drivers/platform/x86/think-lmi.h

@@ -8,15 +8,7 @@
 #define TLMI_SETTINGS_COUNT  256
 #define TLMI_SETTINGS_MAXLEN 512
 #define TLMI_PWD_BUFSIZE     129
-#define TLMI_PWDTYPE_MAXLEN   64
-#define TLMI_ENC_MAXLEN       64
 #define TLMI_LANG_MAXLEN       4
-#define TLMI_PWDTYPE_LEN       4
-/*
- * Longest string should be in the set command: allow size of BIOS
- * option and choice
- */
-#define TLMI_GETSET_MAXLEN (TLMI_SETTINGS_MAXLEN + TLMI_SETTINGS_MAXLEN)
 
 /* Possible error values */
 struct tlmi_err_codes {
@@ -43,7 +35,6 @@ struct tlmi_pwdcfg {
 struct tlmi_pwd_setting {
 	struct kobject kobj;
 	bool valid;
-	char display_name[TLMI_PWDTYPE_MAXLEN];
 	char password[TLMI_PWD_BUFSIZE];
 	const char *pwd_type;
 	const char *role;