Remove (ifdef) RNA for simulation, point cloud and particles

For 2.90 release this should not be exposed in the RNA API.

In master this needs to be ON by default, that's all.

Differential Revision: https://developer.blender.org/D8589

source/blender/makesrna/intern/rna_object.c

@@ -564,9 +564,17 @@ static StructRNA *rna_Object_data_typef(PointerRNA *ptr)
     case OB_GPENCIL:
       return &RNA_GreasePencil;
     case OB_HAIR:
+#  ifdef WITH_HAIR_NODES
       return &RNA_Hair;
+#  else
+      return &RNA_ID;
+#  endif
     case OB_POINTCLOUD:
+#  ifdef WITH_PARTICLE_NODES
       return &RNA_PointCloud;
+#  else
+      return &RNA_ID;
+#  endif
     case OB_VOLUME:
       return &RNA_Volume;
     default: