Remove unused Edon-R variants

This commit removes the edonr_byteorder.h file and all unused
variants of Edon-R.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tino Reichardt <milky-zfs@mcmilk.de>
Closes openzfs#13618

include/sys/edonr.h

@@ -1,6 +1,4 @@
 /*
- * IDI,NTNU
- *
  * CDDL HEADER START
  *
  * The contents of this file are subject to the terms of the
@@ -19,15 +17,13 @@
  * information: Portions Copyright [yyyy] [name of copyright owner]
  *
  * CDDL HEADER END
- *
- * Copyright (C) 2009, 2010, Jorn Amundsen <jorn.amundsen@ntnu.no>
- *
- * Tweaked Edon-R implementation for SUPERCOP, based on NIST API.
- *
- * $Id: edonr.h 517 2013-02-17 20:34:39Z joern $
  */
+
 /*
- * Portions copyright (c) 2013, Saso Kiselkov, All rights reserved
+ * Based on Edon-R implementation for SUPERCOP, based on NIST API.
+ * Copyright (c) 2009, 2010 Jørn Amundsen <jorn.amundsen@ntnu.no>
+ * Copyright (c) 2013 Saso Kiselkov, All rights reserved
+ * Copyright (c) 2022 Tino Reichardt <milky-zfs@mcmilk.de>
  */
 
 #ifndef	_SYS_EDONR_H_
@@ -40,8 +36,8 @@ extern "C" {
 #ifdef  _KERNEL
 #include <sys/types.h>
 #else
-#include <stdint.h> /* uint32_t... */
-#include <stdlib.h> /* size_t ... */
+#include <stdint.h>
+#include <stdlib.h>
 #endif
 
 /*
@@ -52,44 +48,29 @@ extern "C" {
  */
 
 /* Specific algorithm definitions */
-#define	EdonR224_DIGEST_SIZE	28
-#define	EdonR224_BLOCK_SIZE	64
-#define	EdonR256_DIGEST_SIZE	32
-#define	EdonR256_BLOCK_SIZE	64
-#define	EdonR384_DIGEST_SIZE	48
-#define	EdonR384_BLOCK_SIZE	128
 #define	EdonR512_DIGEST_SIZE	64
 #define	EdonR512_BLOCK_SIZE	128
 
 #define	EdonR256_BLOCK_BITSIZE	512
 #define	EdonR512_BLOCK_BITSIZE	1024
 
-typedef struct {
-	uint32_t DoublePipe[16];
-	uint8_t LastPart[EdonR256_BLOCK_SIZE * 2];
-} EdonRData256;
 typedef struct {
 	uint64_t DoublePipe[16];
 	uint8_t LastPart[EdonR512_BLOCK_SIZE * 2];
 } EdonRData512;
 
 typedef struct {
-	size_t hashbitlen;
-
-	/* + algorithm specific parameters */
-	int unprocessed_bits;
 	uint64_t bits_processed;
+	int unprocessed_bits;
 	union {
-		EdonRData256 p256[1];
 		EdonRData512 p512[1];
 	} pipe[1];
 } EdonRState;
 
-void EdonRInit(EdonRState *state, size_t hashbitlen);
+void EdonRInit(EdonRState *state);
 void EdonRUpdate(EdonRState *state, const uint8_t *data, size_t databitlen);
 void EdonRFinal(EdonRState *state, uint8_t *hashval);
-void EdonRHash(size_t hashbitlen, const uint8_t *data, size_t databitlen,
-    uint8_t *hashval);
+void EdonRHash(const uint8_t *data, size_t databitlen, uint8_t *hashval);
 
 #ifdef	__cplusplus
 }