diff --git a/app/include/mem_manager.h b/app/include/mem_manager.h
deleted file mode 100644
index a107aaec..00000000
--- a/app/include/mem_manager.h
+++ /dev/null
@@ -1,81 +0,0 @@
-#ifndef __MEM_MANAGER_H__
-#define __MEM_MANAGER_H__
-
-#include "c_types.h"
-
-/*------------------------��������------------------------*/
-
-#define MPU_WRAPPERS_INCLUDED_FROM_API_FILE
-#ifndef IOT_SIP_MODE
-//#define configTOTAL_HEAP_SIZE			( ( size_t ) ( 0x3fffc000 - (uint32)&_heap_start ) )//fix 16000 to 24000 on 14.2.26
-#else
-#define configTOTAL_HEAP_SIZE			( ( size_t ) ( 8000 ) )
-#endif
-#define portBYTE_ALIGNMENT			8
-#define pdFALSE 0
-#define pdTRUE  1
-
-#undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE
-#if portBYTE_ALIGNMENT == 8
-	#define portBYTE_ALIGNMENT_MASK ( 0x0007 )
-#endif
-
-#if portBYTE_ALIGNMENT == 4
-	#define portBYTE_ALIGNMENT_MASK	( 0x0003 )
-#endif
-
-#if portBYTE_ALIGNMENT == 2
-	#define portBYTE_ALIGNMENT_MASK	( 0x0001 )
-#endif
-
-#if portBYTE_ALIGNMENT == 1
-	#define portBYTE_ALIGNMENT_MASK	( 0x0000 )
-#endif
-
-#ifndef portBYTE_ALIGNMENT_MASK
-	#error "Invalid portBYTE_ALIGNMENT definition"
-#endif
-
-#define configUSE_MALLOC_FAILED_HOOK	1
-#define portPOINTER_SIZE_TYPE unsigned int
-
-#define heapMINIMUM_BLOCK_SIZE	( ( size_t ) ( heapSTRUCT_SIZE * 2 ) )
-
-//#define configADJUSTED_HEAP_SIZE	( configTOTAL_HEAP_SIZE - portBYTE_ALIGNMENT )
-
-//static unsigned char ucHeap[ configTOTAL_HEAP_SIZE ];
-static unsigned char *ucHeap;
-
-typedef struct A_BLOCK_LINK
-{
-	struct A_BLOCK_LINK *pxNextFreeBlock;	//The next free block in the list. 
-	size_t xBlockSize;						//The size of the free block. 
-} xBlockLink;
-
-static const size_t heapSTRUCT_SIZE	ICACHE_RODATA_ATTR = ( sizeof( xBlockLink ) + portBYTE_ALIGNMENT - ( sizeof( xBlockLink ) % portBYTE_ALIGNMENT ) );
-
-//static const size_t xTotalHeapSize = ( ( size_t ) configADJUSTED_HEAP_SIZE ) & ( ( size_t ) ~portBYTE_ALIGNMENT_MASK );
-
-static xBlockLink xStart, *pxEnd = NULL;
-
-//static size_t xFreeBytesRemaining = ( ( size_t ) configADJUSTED_HEAP_SIZE ) & ( ( size_t ) ~portBYTE_ALIGNMENT_MASK );
-
-
-/*------------------------��������-----------------------------------*/
-
-static void prvInsertBlockIntoFreeList( xBlockLink *pxBlockToInsert ) ;//ICACHE_FLASH_ATTR;
-
-static void prvHeapInit( void ) ;//ICACHE_FLASH_ATTR;
-
-void vApplicationMallocFailedHook( void ) ;//ICACHE_FLASH_ATTR;
-
-void *pvPortMalloc( size_t xWantedSize ) ;//ICACHE_FLASH_ATTR;
-
-void vPortFree( void *pv ) ;//ICACHE_FLASH_ATTR;
-
-size_t xPortGetFreeHeapSize( void ) ;//ICACHE_FLASH_ATTR;
-
-void vPortInitialiseBlocks( void ) ;//ICACHE_FLASH_ATTR;
-/*-----------------------------------------------------------*/
-
-#endif