module: icp: drop software provider generation numbers

We register all providers at once, before anything happens

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

module/icp/include/sys/crypto/impl.h

@@ -263,11 +263,6 @@ typedef	struct kcf_mech_entry {
 	crypto_mech_type_t	me_mechid;	/* Internal id for mechanism */
 	kmutex_t		me_mutex;	/* access protection	*/
 	kcf_prov_mech_desc_t	*me_sw_prov;    /* provider */
-	/*
-	 * When a provider is present, this is the generation number that
-	 * ensures no objects from old providers are used in the new one
-	 */
-	uint32_t		me_gen_swprov;
 	/*
 	 *  threshold for using hardware providers for this mech
 	 */