assimp: remove now useless throw

src/mesh_loader/assimp.cpp

@@ -163,15 +163,7 @@ unsigned recurseBuildMesh (
     for (uint32_t j = 0; j < input_mesh->mNumFaces; j++)
     {
       aiFace& face = input_mesh->mFaces[j];
-      if (face.mNumIndices != 3) {
-        std::stringstream ss;
-        ss << "Mesh " << input_mesh->mName.C_Str() << " has a face with "
-           << face.mNumIndices << " vertices. This is not supported\n";
-        ss << "Node name is: " << node->mName.C_Str() << "\n";
-        ss << "Mesh index: " << i << "\n";
-        ss << "Face index: " << j << "\n";
-        throw std::invalid_argument (ss.str());
-      }
+      assert(face.mNumIndices == 3 && "The size of the face is not valid.");
       tv.triangles_.push_back (fcl::Triangle(vertices_offset + face.mIndices[0],
                                              vertices_offset + face.mIndices[1],
                                              vertices_offset + face.mIndices[2]));