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diff --git a/libs/vamp-sdk/vamp-hostsdk/PluginChannelAdapter.h b/libs/vamp-sdk/vamp-hostsdk/PluginChannelAdapter.h
deleted file mode 100644
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--- a/libs/vamp-sdk/vamp-hostsdk/PluginChannelAdapter.h
+++ /dev/null
@@ -1,149 +0,0 @@
-/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
-
-/*
-    Vamp
-
-    An API for audio analysis and feature extraction plugins.
-
-    Centre for Digital Music, Queen Mary, University of London.
-    Copyright 2006-2009 Chris Cannam and QMUL.
-  
-    Permission is hereby granted, free of charge, to any person
-    obtaining a copy of this software and associated documentation
-    files (the "Software"), to deal in the Software without
-    restriction, including without limitation the rights to use, copy,
-    modify, merge, publish, distribute, sublicense, and/or sell copies
-    of the Software, and to permit persons to whom the Software is
-    furnished to do so, subject to the following conditions:
-
-    The above copyright notice and this permission notice shall be
-    included in all copies or substantial portions of the Software.
-
-    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-    EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-    NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
-    ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
-    CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-    WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-    Except as contained in this notice, the names of the Centre for
-    Digital Music; Queen Mary, University of London; and Chris Cannam
-    shall not be used in advertising or otherwise to promote the sale,
-    use or other dealings in this Software without prior written
-    authorization.
-*/
-
-#ifndef _VAMP_PLUGIN_CHANNEL_ADAPTER_H_
-#define _VAMP_PLUGIN_CHANNEL_ADAPTER_H_
-
-#include "hostguard.h"
-#include "PluginWrapper.h"
-
-_VAMP_SDK_HOSTSPACE_BEGIN(PluginChannelAdapter.h)
-
-namespace Vamp {
-
-namespace HostExt {
-
-/**
- * \class PluginChannelAdapter PluginChannelAdapter.h <vamp-hostsdk/PluginChannelAdapter.h>
- *
- * PluginChannelAdapter is a Vamp plugin adapter that implements a
- * policy for management of plugins that expect a different number of
- * input channels from the number actually available in the source
- * audio data.
- *
- * A host using PluginChannelAdapter may ignore the getMinChannelCount
- * and getMaxChannelCount reported by the plugin, and still expect the
- * plugin to run.
- *
- * PluginChannelAdapter implements the following policy:
- *
- *  - If the plugin supports the provided number of channels directly,
- *  PluginChannelAdapter will just run the plugin as normal.
- *
- *  - If the plugin only supports exactly one channel but more than
- *  one channel is provided, PluginChannelAdapter will use the mean of
- *  the channels.  This ensures that the resulting values remain
- *  within the same magnitude range as expected for mono data.
- *
- *  - If the plugin requires more than one channel but exactly one is
- *  provided, the provided channel will be duplicated across all the
- *  plugin input channels.
- *
- * If none of the above apply:
- * 
- *  - If the plugin requires more channels than are provided, the
- *  minimum acceptable number of channels will be produced by adding
- *  empty (zero valued) channels to those provided.
- *
- *  - If the plugin requires fewer channels than are provided, the
- *  maximum acceptable number of channels will be produced by
- *  discarding the excess channels.
- *
- * Hosts requiring a different channel policy from the above will need
- * to implement it themselves, instead of using PluginChannelAdapter.
- *
- * Note that PluginChannelAdapter does not override the minimum and
- * maximum channel counts returned by the wrapped plugin.  The host
- * will need to be aware that it is using a PluginChannelAdapter, and
- * be prepared to ignore these counts as necessary.  (This contrasts
- * with the approach used in PluginInputDomainAdapter, which aims to
- * make the host completely unaware of which underlying input domain
- * is in fact in use.)
- * 
- * (The rationale for this is that a host may wish to use the
- * PluginChannelAdapter but still discriminate in some way on the
- * basis of the number of channels actually supported.  For example, a
- * simple stereo audio host may prefer to reject plugins that require
- * more than two channels on the grounds that doesn't actually
- * understand what they are for, rather than allow the channel adapter
- * to make a potentially meaningless channel conversion for them.)
- *
- * In every respect other than its management of channels, the
- * PluginChannelAdapter behaves identically to the plugin that it
- * wraps.  The wrapped plugin will be deleted when the wrapper is
- * deleted.
- *
- * \note This class was introduced in version 1.1 of the Vamp plugin SDK.
- */
-
-class PluginChannelAdapter : public PluginWrapper
-{
-public:
-    /**
-     * Construct a PluginChannelAdapter wrapping the given plugin.
-     * The adapter takes ownership of the plugin, which will be
-     * deleted when the adapter is deleted.
-     */
-    PluginChannelAdapter(Plugin *plugin);
-    virtual ~PluginChannelAdapter();
-
-    bool initialise(size_t channels, size_t stepSize, size_t blockSize);
-
-    FeatureSet process(const float *const *inputBuffers, RealTime timestamp);
-
-    /**
-     * Call process(), providing interleaved audio data with the
-     * number of channels passed to initialise().  The adapter will
-     * de-interleave into temporary buffers as appropriate before
-     * calling process().
-     *
-     * \note This function was introduced in version 1.4 of the Vamp
-     * plugin SDK.
-     */
-    FeatureSet processInterleaved(const float *inputBuffer, RealTime timestamp);
-
-protected:
-    class Impl;
-    Impl *m_impl;
-};
-
-}
-
-}
-
-_VAMP_SDK_HOSTSPACE_END(PluginChannelAdapter.h)
-
-#endif