Particles: w/o HiPACE++ (#418)

HiPACE++ does not yet use our Python bindings, so we can save some
compile & link time by not compiling for it just yet.

Author: ax3l

src/Particle/CMakeLists.txt

@@ -3,7 +3,6 @@ foreach(D IN LISTS AMReX_SPACEDIM)
       PRIVATE
         ParticleContainer.cpp
         ParticleContainer_FHDeX.cpp
-        ParticleContainer_HiPACE.cpp
         ParticleContainer_ImpactX.cpp
         ParticleContainer_WarpX.cpp
     )

src/Particle/ParticleContainer.cpp

@@ -34,7 +34,6 @@ namespace
 
 // forward declarations
 void init_ParticleContainer_FHDeX(py::module& m);
-void init_ParticleContainer_HiPACE(py::module& m);
 void init_ParticleContainer_ImpactX(py::module& m);
 void init_ParticleContainer_WarpX(py::module& m);
 
@@ -58,7 +57,6 @@ void init_ParticleContainer(py::module& m) {
 
     // application codes
     init_ParticleContainer_FHDeX(m);
-    init_ParticleContainer_HiPACE(m);
     init_ParticleContainer_ImpactX(m);
     init_ParticleContainer_WarpX(m);