remove amtrace.h for redesign

am/amtrace.h

@@ -1,49 +0,0 @@
-#ifndef __AMTRACE_H__
-#define __AMTRACE_H__
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-// payload of function calls
-typedef struct _CallArgs {
-  uintptr_t a0, a1, a2, a3;
-} _CallArgs;
-
-typedef union _Payload {
-  _CallArgs args;
-  uintptr_t retval;
-} _CallPayload;
-
-struct _TraceEvent {
-  uint16_t cpu;   // cpu id (0 based)
-  uint16_t type;  // _TRACE_ ## { CALL | RET }
-  uint32_t time;  // time stamp
-  uintptr_t ref;  // a pointer
-  char payload[]; // _Payload: CALL -> .args
-                  //            RET -> .retval
-} __attribute__((packed));
-typedef struct _TraceEvent _TraceEvent;
-
-// ========================= trace components ========================
-
-#define _TRACE_IOE     0x00010000
-#define _TRACE_CTE     0x00020000
-#define _TRACE_VME     0x00040000
-
-// =========================== trace points ==========================
-
-#define _TRACE_CALL    0x00000001
-#define _TRACE_RET     0x00000002
-#define _TRACE_FUNC    (_TRACE_CALL | _TRACE_RET)
-
-#define _TRACE_ALL     0xffffffff
-
-void _trace_on(uint32_t flags);
-void _trace_off(uint32_t flags);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif