net/ena: remove endian swap functions

[ upstream commit 07ebd5d ]

swap*_*_le() functions are not used anywhere and besides there are rte
alternatives already present.

Fixes: 1173fca ("ena: add polling-mode driver")

Signed-off-by: Stanislaw Kardach <kda@semihalf.com>
Reviewed-by: Michal Krawczyk <mk@semihalf.com>
Reviewed-by: Igor Chauskin <igorch@amazon.com>
Reviewed-by: Shay Agroskin <shayagr@amazon.com>

drivers/net/ena/ena_platform.h

@@ -6,18 +6,6 @@
 #ifndef __ENA_PLATFORM_H__
 #define __ENA_PLATFORM_H__
 
-#define swap16_to_le(x)		(x)
-
-#define swap32_to_le(x)		(x)
-
-#define swap64_to_le(x)		(x)
-
-#define swap16_from_le(x)       (x)
-
-#define swap32_from_le(x)	(x)
-
-#define swap64_from_le(x)	(x)
-
 #define ena_assert_msg(cond, msg)		\
 	do {					\
 		if (unlikely(!(cond))) {	\