MT#55283 remove duplicate bufferpool.c

Change-Id: I1efc386bd465c00c65de6f95abd9c19a4b4d1c50

t/Makefile

@@ -78,7 +78,7 @@ SRCS+=		spandsp_recv_fax_pcm.c spandsp_recv_fax_t38.c spandsp_send_fax_pcm.c \
 ifeq ($(RTPENGINE_EXTENDED_TESTS),1)
 SRCS+=		test-amr-decode.c test-amr-encode.c
 endif
-LIBSRCS+=	codeclib.strhash.c resample.c socket.c streambuf.c dtmflib.c poller.c bufferpool.c
+LIBSRCS+=	codeclib.strhash.c resample.c socket.c streambuf.c dtmflib.c poller.c
 DAEMONSRCS+=	control_ng_flags_parser.c codec.c call.c ice.c kernel.c media_socket.c stun.c bencode.c \
 		dtls.c recording.c statistics.c rtcp.c redis.c iptables.c graphite.c \
 		cookie_cache.c udp_listener.c homer.c load.c cdr.c dtmf.c timerthread.c \