staging: r8188eu: remove rtw_mfree2d() function

It is just a wrapper around kfree(), so remove it and just call kfree()
instead.

Link: https://lore.kernel.org/r/20210730092417.1014392-7-gregkh@linuxfoundation.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/hal/rtl8188e_hal_init.c

@@ -187,9 +187,7 @@ efuse_phymap_to_logical(u8 *phymap, u16 _offset, u16 _size_byte, u8  *pbuf)
 
 exit:
 	kfree(efuseTbl);
-
-	if (eFuseWord)
-		rtw_mfree2d((void *)eFuseWord, EFUSE_MAX_SECTION_88E, EFUSE_MAX_WORD_UNIT, sizeof(u16));
+	kfree(eFuseWord);
 }
 
 static void efuse_read_phymap_from_txpktbuf(
@@ -921,9 +919,7 @@ static void Hal_EfuseReadEFuse88E(struct adapter *Adapter,
 
 exit:
 	kfree(efuseTbl);
-
-	if (eFuseWord)
-		rtw_mfree2d((void *)eFuseWord, EFUSE_MAX_SECTION_88E, EFUSE_MAX_WORD_UNIT, sizeof(u16));
+	kfree(eFuseWord);
 }
 
 static void ReadEFuseByIC(struct adapter *Adapter, u8 efuseType, u16 _offset, u16 _size_byte, u8 *pbuf, bool bPseudoTest)

drivers/staging/r8188eu/include/osdep_service.h

@@ -226,7 +226,6 @@ void _rtw_mfree(u8 *pbuf, u32 sz);
 #define rtw_mfree(pbuf, sz)		_rtw_mfree((pbuf), (sz))
 
 void *rtw_malloc2d(int h, int w, int size);
-void rtw_mfree2d(void *pbuf, int h, int w, int size);
 
 u32  _rtw_down_sema(struct semaphore *sema);
 void _rtw_mutex_init(struct mutex *pmutex);

drivers/staging/r8188eu/os_dep/osdep_service.c

@@ -91,11 +91,6 @@ void *rtw_malloc2d(int h, int w, int size)
 	return a;
 }
 
-void rtw_mfree2d(void *pbuf, int h, int w, int size)
-{
-	kfree(pbuf);
-}
-
 /*
 For the following list_xxx operations,
 caller must guarantee the atomic context.