Removes MuonFiltered algorithms that were never used

The code removed was never used. These algorithms were written copy pasting from FilterTracks and VertexFitter kernel source files. The purpose was to reconfigure them to run on a different set of events. This was a dirty solution before the current MultiEventScheduler was release.

Turns out this code is useless and should be removed from the codebase.

device/vertex_fit/vertex_fitter/include/FilterMFTracks.cuh

-/*****************************************************************************\
-* (c) Copyright 2018-2020 CERN for the benefit of the LHCb Collaboration      *
-*                                                                             *
-* This software is distributed under the terms of the Apache License          *
-* version 2 (Apache-2.0), copied verbatim in the file "LICENSE".              *
-*                                                                             *
-* In applying this licence, CERN does not waive the privileges and immunities *
-* granted to it by virtue of its status as an Intergovernmental Organization  *
-* or submit itself to any jurisdiction.                                       *
-\*****************************************************************************/
-#pragma once
-
-#include "ParKalmanDefinitions.cuh"
-#include "ParKalmanMath.cuh"
-#include "ParKalmanFittedTrack.cuh"
-#include "VertexDefinitions.cuh"
-#include "SciFiConsolidated.cuh"
-#include "UTConsolidated.cuh"
-#include "States.cuh"
-#include "AlgorithmTypes.cuh"
-
-namespace FilterMFTracks {
-  struct Parameters {
-    HOST_INPUT(host_number_of_events_t, unsigned) host_number_of_events;
-    HOST_INPUT(host_selected_events_mf_t, unsigned) host_selected_events_mf;
-    DEVICE_INPUT(dev_kf_tracks_t, ParKalmanFilter::FittedTrack) dev_kf_tracks;
-    DEVICE_INPUT(dev_mf_tracks_t, ParKalmanFilter::FittedTrack) dev_mf_tracks;
-    DEVICE_INPUT(dev_offsets_long_tracks_t, unsigned) dev_atomics_scifi;
-    DEVICE_INPUT(dev_offsets_scifi_track_hit_number, unsigned) dev_scifi_track_hit_number;
-    DEVICE_INPUT(dev_scifi_qop_t, float) dev_scifi_qop;
-    DEVICE_INPUT(dev_scifi_states_t, MiniState) dev_scifi_states;
-    DEVICE_INPUT(dev_scifi_track_ut_indices_t, unsigned) dev_scifi_track_ut_indices;
-    DEVICE_INPUT(dev_mf_track_offsets_t, unsigned) dev_mf_track_offsets;
-    DEVICE_INPUT(dev_event_list_mf_t, unsigned) dev_event_list_mf;
-    DEVICE_OUTPUT(dev_mf_sv_atomics_t, unsigned) dev_mf_sv_atomics;
-    DEVICE_OUTPUT(dev_svs_kf_idx_t, unsigned) dev_svs_kf_idx;
-    DEVICE_OUTPUT(dev_svs_mf_idx_t, unsigned) dev_svs_mf_idx;
-  };
-
-  __global__ void filter_mf_tracks(
-    Parameters,
-    const unsigned number_of_events,
-    const float kf_track_min_pt,
-    const float kf_track_min_ipchi2,
-    const float mf_track_min_pt);
-
-  struct filter_mf_tracks_t : public DeviceAlgorithm, Parameters {
-    void set_arguments_size(ArgumentReferences<Parameters> arguments, const RuntimeOptions&, const Constants&) const;
-
-    void operator()(
-      const ArgumentReferences<Parameters>& arguments,
-      const RuntimeOptions&,
-      const Constants&,
-      const Allen::Context& context) const;
-
-  private:
-    Allen::Property<float> m_kfminpt {this, "kf_track_min_pt", 800.f, "minimum track pT"};
-    Allen::Property<float> m_kfminipchi2 {this, "kf_track_min_ipchi2", 16.f, "minimum track IP chi2"};
-    Allen::Property<float> m_mfminpt {this, "mf_track_min_pt", 200.f, "minimum velo-UT-muon track pt"};
-    Allen::Property<dim3> m_block_dim {this, "block_dim", {16, 16, 1}, "block dimensions"};
-  };
-
-} // namespace FilterMFTracks