module: icp: remove other provider types

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #12901

include/sys/crypto/api.h

@@ -168,7 +168,6 @@ typedef enum {
 /* The event_arg argument structure for CRYPTO_EVENT_PROVIDERS_CHANGE event */
 typedef struct crypto_notify_event_change {
 	crypto_mech_name_t ec_mech_name;
-	crypto_provider_type_t ec_provider_type;
 	crypto_event_change_t ec_change;
 } crypto_notify_event_change_t;
 

include/sys/crypto/common.h

@@ -369,12 +369,6 @@ typedef struct crypto_key32 {
 
 /* Providers */
 
-typedef enum {
-	CRYPTO_HW_PROVIDER = 0,
-	CRYPTO_SW_PROVIDER,
-	CRYPTO_LOGICAL_PROVIDER
-} crypto_provider_type_t;
-
 typedef uint32_t 	crypto_provider_id_t;
 #define	KCF_PROVID_INVALID	((uint32_t)-1)