Remove workaround for normals not matching winding order (minetest#12460

)

Co-authored-by: sfan5 <[email protected]>

src/client/mesh.cpp

@@ -330,9 +330,6 @@ void recalculateBoundingBox(scene::IMesh *src_mesh)
 
 bool checkMeshNormals(scene::IMesh *mesh)
 {
- // Assume correct normals if this many first faces get it right.
- static const u16 MAX_FACES_TO_CHECK = 9;
-
  u32 buffer_count = mesh->getMeshBufferCount();
 
  for (u32 i = 0; i < buffer_count; i++) {
@@ -346,19 +343,6 @@ bool checkMeshNormals(scene::IMesh *mesh)
 
  if (!std::isfinite(length) || length < 1e-10f)
  return false;
-
- const u16 count = MYMIN(MAX_FACES_TO_CHECK * 3, buffer->getIndexCount() - 3);
- for (u16 i = 0; i < count; i += 3) {
-
- core::plane3df plane(buffer->getPosition(buffer->getIndices()[i]),
- buffer->getPosition(buffer->getIndices()[i+1]),
- buffer->getPosition(buffer->getIndices()[i+2]));
-
- for (u16 j = 0; j < 3; j++)
- if (plane.Normal.dotProduct(buffer->getNormal(buffer->getIndices()[i+j])) <= 0)
- return false;
- }
-
  }
 
  return true;