update to 4.5.2.

Author: zhangwei

Android/APIExample/agora-simple-filter/src/main/cpp/AgoraRtcKit/api/aosl_ref.h

@@ -28,7 +28,7 @@ typedef struct _internal_ref_od_ *aosl_ref_t;
 
 #define AOSL_REF_INVALID ((aosl_ref_t)(intptr_t)NULL)
 
-#define aosl_ref_invalid(ref) ((int)(intptr_t)(ref) <= 0)
+#define aosl_ref_invalid(ref) ((intptr_t)(ref) <= 0)
 
 
 /**

Android/APIExample/agora-simple-filter/src/main/cpp/AgoraRtcKit/api/cpp/aosl_poll_class.h

@@ -21,7 +21,6 @@
 #include <api/cpp/aosl_ares_class.h>
 
 #if (__cplusplus >= 201103) || (defined (_MSC_VER) && _MSC_VER >= 1800)
-#include <functional>
 #include <memory>
 #endif