Cleanup: redundant forward declarations of structs

source/blender/blenkernel/BKE_DerivedMesh.hh

@@ -58,7 +58,6 @@ struct CCGElem;
 struct CCGKey;
 struct CustomData_MeshMasks;
 struct Depsgraph;
-struct MFace;
 struct Mesh;
 struct ModifierData;
 struct Object;

source/blender/blenkernel/BKE_anim_data.hh

@@ -14,7 +14,6 @@
 
 struct AnimData;
 struct BlendDataReader;
-struct BlendLibReader;
 struct BlendWriter;
 struct ID;
 struct Library;

source/blender/blenkernel/BKE_animsys.h

@@ -18,7 +18,6 @@ extern "C" {
 
 struct AnimData;
 struct BlendDataReader;
-struct BlendLibReader;
 struct BlendWriter;
 struct Depsgraph;
 struct FCurve;

source/blender/blenkernel/BKE_blender.hh

@@ -12,7 +12,6 @@
 
 struct Main;
 struct UserDef;
-struct bContext;
 
 /**
  * Only to be called on exit Blender.

source/blender/blenkernel/BKE_collection.hh

@@ -20,12 +20,9 @@
 struct BLI_Iterator;
 struct Base;
 struct BlendDataReader;
-struct BlendLibReader;
 struct BlendWriter;
 struct Collection;
-struct Depsgraph;
 struct ID;
-struct Library;
 struct Main;
 struct Object;
 struct Scene;

source/blender/blenkernel/BKE_constraint.h

@@ -9,7 +9,6 @@
  */
 
 struct BlendDataReader;
-struct BlendLibReader;
 struct BlendWriter;
 struct Depsgraph;
 struct ID;

source/blender/blenkernel/BKE_curve.hh

@@ -19,7 +19,6 @@
 struct BezTriple;
 struct BezTriple;
 struct BMEditMesh;
-struct BoundBox;
 struct BPoint;
 struct Curve;
 struct Depsgraph;

source/blender/blenkernel/BKE_data_transfer.h

@@ -17,7 +17,6 @@ extern "C" {
 struct Depsgraph;
 struct Object;
 struct ReportList;
-struct Scene;
 struct SpaceTransform;
 
 /* Warning, those def are stored in files (TransferData modifier), *DO NOT* modify those values. */

source/blender/blenkernel/BKE_fcurve.hh

@@ -21,7 +21,6 @@ struct AnimData;
 struct AnimationEvalContext;
 struct BezTriple;
 struct BlendDataReader;
-struct BlendLibReader;
 struct BlendWriter;
 struct LibraryForeachIDData;
 struct PathResolvedRNA;

source/blender/blenkernel/BKE_gpencil_modifier_legacy.h

@@ -16,7 +16,6 @@ extern "C" {
 
 struct ARegionType;
 struct BlendDataReader;
-struct BlendLibReader;
 struct BlendWriter;
 struct Depsgraph;
 struct GpencilModifierData;

source/blender/blenkernel/BKE_icons.h

@@ -74,8 +74,6 @@ struct Icon_Geom {
 
 typedef struct Icon Icon;
 
-struct BlendDataReader;
-struct BlendWriter;
 struct ID;
 struct ImBuf;
 struct PreviewImage;

source/blender/blenkernel/BKE_idprop.h

@@ -16,13 +16,11 @@ extern "C" {
 #endif
 
 struct BlendDataReader;
-struct BlendLibReader;
 struct BlendWriter;
 struct ID;
 struct IDProperty;
 struct IDPropertyUIData;
 struct IDPropertyUIDataEnumItem;
-struct Library;
 
 typedef union IDPropertyTemplate {
   int i;

source/blender/blenkernel/BKE_lattice.hh

@@ -16,7 +16,6 @@
 #include "BLI_sys_types.h"
 
 struct BMEditMesh;
-struct BoundBox;
 struct BPoint;
 struct Depsgraph;
 struct Lattice;

source/blender/blenkernel/BKE_mesh_remap.hh

@@ -15,8 +15,6 @@
 
 #include "BKE_mesh_mapping.hh"
 
-struct CustomData;
-struct CustomData_MeshMasks;
 struct MemArena;
 struct Mesh;
 

source/blender/blenkernel/BKE_nla.h

@@ -28,7 +28,6 @@ struct Speaker;
 struct bAction;
 
 struct BlendDataReader;
-struct BlendLibReader;
 struct BlendWriter;
 struct PointerRNA;
 struct PropertyRNA;

source/blender/blenkernel/BKE_node.hh

@@ -29,7 +29,6 @@
 #define MAX_SOCKET 512
 
 struct BlendDataReader;
-struct BlendLibReader;
 struct BlendWriter;
 struct FreestyleLineStyle;
 struct GPUMaterial;

source/blender/blenkernel/BKE_node_runtime.hh

@@ -30,7 +30,6 @@ struct FieldInferencingInterface;
 class NodeDeclaration;
 struct GeometryNodesLazyFunctionGraphInfo;
 namespace anonymous_attribute_lifetime {
-struct RelationsInNode;
 }
 namespace aal = anonymous_attribute_lifetime;
 }  // namespace blender::nodes

source/blender/blenkernel/BKE_object_types.hh

@@ -13,7 +13,6 @@
 
 #include "DNA_customdata_types.h" /* #CustomData_MeshMasks. */
 
-struct BoundBox;
 struct bGPdata;
 struct Curve;
 struct CurveCache;

source/blender/blenkernel/BKE_paint.hh

@@ -26,7 +26,6 @@ struct BMFace;
 struct BMLog;
 struct BMesh;
 struct BlendDataReader;
-struct BlendLibReader;
 struct BlendWriter;
 struct Brush;
 struct CustomDataLayer;
@@ -53,7 +52,6 @@ struct Image;
 struct ImagePool;
 struct ImageUser;
 struct KeyBlock;
-struct ListBase;
 struct Main;
 struct Mesh;
 struct MDeformVert;

source/blender/blenkernel/BKE_shader_fx.h

@@ -16,7 +16,6 @@ extern "C" {
 
 struct ARegionType;
 struct BlendDataReader;
-struct BlendLibReader;
 struct BlendWriter;
 struct ID;
 struct ListBase;

source/blender/blenkernel/BKE_shrinkwrap.hh

@@ -29,7 +29,6 @@
  */
 
 struct BVHTree;
-struct GreasePencilShrinkwrapModifierData;
 struct MDeformVert;
 struct Mesh;
 struct ModifierEvalContext;

source/blender/blenkernel/BKE_subdiv_ccg.hh

@@ -19,7 +19,6 @@
 #include "BKE_DerivedMesh.hh"
 
 struct CCGElem;
-struct CCGFace;
 struct CCGKey;
 struct Mesh;
 struct Subdiv;

source/blender/blenkernel/BKE_viewer_path.hh

@@ -26,9 +26,7 @@
 
 struct BlendWriter;
 struct BlendDataReader;
-struct BlendLibReader;
 struct LibraryForeachIDData;
-struct Library;
 
 namespace blender::bke::id {
 class IDRemapper;

source/blender/blenkernel/intern/CCGSubSurf_intern.h

@@ -82,9 +82,6 @@ CCGAllocatorIFC *ccg_getStandardAllocatorIFC(void);
  * Catmull-Clark Gridding Subdivision Surface.
  */
 
-/* TODO(sergey): Get rid of this, it's more or less a bad level call. */
-struct DerivedMesh;
-
 /* ** Data structures, constants. enums ** */
 
 enum {
@@ -256,8 +253,6 @@ void ccgSubSurf__effectedFaceNeighbors(CCGSubSurf *ss,
 
 void ccgSubSurf__sync_legacy(CCGSubSurf *ss);
 
-struct OpenSubdiv_Converter;
-
 /* `CCGSubSurf_util.cc` */
 
 #ifdef DUMP_RESULT_GRIDS