Use neteq_unittest_tools in audio_decoder_unittests
Use neteq_unittest_tools in audio_decoder_unittests

With the recent move of RtpFileReader to the rtp_test_utils target
(in r7536), it is now possible to let audio_decoder_unittests depend
on neteq_unittest_tools without breaking the Android build.

BUG=2692
TBR=tina.legrand@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/30819004

git-svn-id: 917f5d3ca488f358c4d40eaec14422cf392ccec9@7542 4adac7df-926f-26a2-2b94-8c16560cd09d

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