BTD: remove old/legacy back-transformed diagnostics (#3485)

* Start removing old BTD

* Remove GetCellCenteredData

* Remove do_backtransform_fields and do_backtransform_particles

* Remove more functions

* Remove more variables

* Update documentation

* Fix CI test `RigidInjection_BTD`

* Remove slicing from `BTD_ReducedSliceDiag`

* Rename `BTD_ReducedSliceDiag` as `LaserAcceleration_BTD`

* Query deprecated input and abort

Co-authored-by: Edoardo Zoni <ezoni@lbl.gov>

1 files changed, 0 insertions, 40 deletions

diff --git a/Source/Diagnostics/WarpXIO.cpp b/Source/Diagnostics/WarpXIO.cpp
index 548c95cd8..1785a04c1 100644
--- a/Source/Diagnostics/WarpXIO.cpp
+++ b/Source/Diagnostics/WarpXIO.cpp
@@ -352,43 +352,3 @@ WarpX::InitFromCheckpoint ()
     mypc->Restart(restart_chkfile);
 
 }
-
-
-std::unique_ptr<MultiFab>
-WarpX::GetCellCenteredData() {
-
-    WARPX_PROFILE("WarpX::GetCellCenteredData()");
-
-    const amrex::IntVect ng(1);
-    const int nc = 10;
-
-    Vector<std::unique_ptr<MultiFab> > cc(finest_level+1);
-
-    for (int lev = 0; lev <= finest_level; ++lev)
-    {
-        cc[lev] = std::make_unique<MultiFab>(grids[lev], dmap[lev], nc, ng );
-
-        int dcomp = 0;
-        // first the electric field
-        AverageAndPackVectorField( *cc[lev], Efield_aux[lev], dmap[lev], dcomp, ng );
-        dcomp += 3;
-        // then the magnetic field
-        AverageAndPackVectorField( *cc[lev], Bfield_aux[lev], dmap[lev], dcomp, ng );
-        dcomp += 3;
-        // then the current density
-        AverageAndPackVectorField( *cc[lev], current_fp[lev], dmap[lev], dcomp, ng );
-        dcomp += 3;
-        // then the charge density
-        const std::unique_ptr<MultiFab>& charge_density = mypc->GetChargeDensity(lev);
-        AverageAndPackScalarField( *cc[lev], *charge_density, dmap[lev], dcomp, ng );
-
-        ablastr::utils::communication::FillBoundary(*cc[lev], WarpX::do_single_precision_comms, geom[lev].periodicity());
-    }
-
-    for (int lev = finest_level; lev > 0; --lev)
-    {
-        CoarsenIO::Coarsen( *cc[lev-1], *cc[lev], 0, 0, nc, 0, refRatio(lev-1) );
-    }
-
-    return std::move(cc[0]);
-}