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diff --git a/pjmedia/include/pjmedia/sync_port.h b/pjmedia/include/pjmedia/sync_port.h
deleted file mode 100644
index 128833c4..00000000
--- a/pjmedia/include/pjmedia/sync_port.h
+++ /dev/null
@@ -1,104 +0,0 @@
-/* $Id$ */
-/* 
- * Copyright (C) 2009 Teluu Inc. (http://www.teluu.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
- */
-#ifndef __PJMEDIA_SYNC_PORT_H__
-#define __PJMEDIA_SYNC_PORT_H__
-
-/**
- * @file sync_port.h
- * @brief Media clock synchronization port.
- */
-#include <pjmedia/port.h>
-
-/**
- * @defgroup PJMEDIA_SYNC_PORT Clock Synchronization Port
- * @ingroup PJMEDIA_PORT_CLOCK
- * @brief Media clock synchronizer
- * @{
- *
- * It is a common problem that audio device does not always provide a smooth
- * clock for application, therefore the application may suffer from jitter, 
- * burst, or even clock skew/drift. Processing audio frames in such 'messy'
- * clock will just increase the complexity. So, before delivering the stream
- * to other components, it could be very helpful to tidy up the clock first.
- *
- * This clock synchronizer port provides solutions in encountering burst and 
- * clock skew, by simply inserting it between the port with 'unhealty' clock
- * (upstream port) and the port requiring 'healthy' clock (downstream port) 
- * using pjmedia port framework. Moreover, it also has an optional feature 
- * to remove jitter by employing an external clock (@ref PJMEDIA_CLOCK),
- * this feature will be enabled when PJMEDIA_SYNC_USE_EXT_CLOCK is specified
- * in @pjmedia_sync_option upon its creation.
- *
- * A synchronizer port internally has instance(s) of @ref PJMED_DELAYBUF, 
- * which provides buffering and wave-form manipulation (shrink/expand) to 
- * handle burst and clock skew/drift, and may also have instance of @ref 
- * PJMEDIA_CLOCK, which provides the external clock timer.
- */
-
-PJ_BEGIN_DECL
-
-/**
- * Synchronization port option.
- */
-typedef enum pjmedia_sync_option
-{
-    /** 
-     * When this flag is specified, synchronizer will provide external clock,
-     * instead of using original parent clock.
-     */
-    PJMEDIA_SYNC_USE_EXT_CLOCK = 1,
-
-    /** 
-     * When this flag is specified, synchronizer will not destroy downstream
-     * port when synchronizer port is destroyed.
-     */
-    PJMEDIA_SYNC_DONT_DESTROY_DN = 128,
-
-} pjmedia_sync_option;
-
-typedef struct pjmedia_sync_param
-{
-    pjmedia_sync_option	    options;
-
-} pjmedia_sync_param;
-
-/**
- * Create synchronizer port. 
- *
- * @param pool		Pool to allocate memory.
- * @param dn_port	Downstream port.
- * @param param		Synchronizer param, see @pjmedia_sync_param.
- * @param p_port	Pointer to receive the port instance.
- *
- * @return		PJ_SUCCESS on success.
- */
-PJ_DECL(pj_status_t) pjmedia_sync_port_create(pj_pool_t *pool,
-					      pjmedia_port *dn_port,
-					      const pjmedia_sync_param *param,
-					      pjmedia_port **p_port );
-
-
-PJ_END_DECL
-
-/**
- * @}
- */
-
-
-#endif	/* __PJMEDIA_SYNC_PORT_H__ */