Cleanup: remove unused code, update comments

source/blender/blenkernel/intern/DerivedMesh.c

@@ -80,11 +80,9 @@
 //#define USE_MODIFIER_VALIDATE
 
 #ifdef USE_MODIFIER_VALIDATE
-#  define ASSERT_IS_VALID_DM(dm) (BLI_assert((dm == NULL) || (DM_is_valid(dm) == true)))
 #  define ASSERT_IS_VALID_MESH(mesh) \
     (BLI_assert((mesh == NULL) || (BKE_mesh_is_valid(mesh) == true)))
 #else
-#  define ASSERT_IS_VALID_DM(dm)
 #  define ASSERT_IS_VALID_MESH(mesh)
 #endif
 

source/blender/blenkernel/intern/editmesh_tangent.c

@@ -274,8 +274,8 @@ static void emDM_calc_loop_tangents_thread(TaskPool *__restrict UNUSED(pool), vo
 /**
  * \see #BKE_mesh_calc_loop_tangent, same logic but used arrays instead of #BMesh data.
  *
- * \note This function is not so normal, its using `bm->ldata` as input,
- * but output's to `dm->loopData`.
+ * \note This function is not so normal, its using #BMesh.ldata as input,
+ * but output's to #Mesh.ldata.
  * This is done because #CD_TANGENT is cache data used only for drawing.
  */
 void BKE_editmesh_loop_tangent_calc(BMEditMesh *em,

source/blender/editors/include/ED_view3d.h

@@ -699,17 +699,6 @@ float ED_view3d_grid_view_scale(struct Scene *scene,
 
 void ED_scene_draw_fps(const struct Scene *scene, int xoffset, int *yoffset);
 
-/* view matrix properties utilities */
-/* unused */
-#if 0
-void ED_view3d_operator_properties_viewmat(struct wmOperatorType *ot);
-void ED_view3d_operator_properties_viewmat_set(struct bContext *C, struct wmOperator *op);
-void ED_view3d_operator_properties_viewmat_get(struct wmOperator *op,
-                                               int *winx,
-                                               int *winy,
-                                               float persmat[4][4]);
-#endif
-
 /* render */
 void ED_view3d_stop_render_preview(struct wmWindowManager *wm, struct ARegion *region);
 void ED_view3d_shade_update(struct Main *bmain, struct View3D *v3d, struct ScrArea *area);