remove unused import

Author: MichaelGrupp

crates/store/re_data_loader/src/loader_urdf.rs

@@ -6,7 +6,6 @@ use std::{
 use ahash::{HashMap, HashMapExt as _, HashSet, HashSetExt as _};
 use anyhow::{Context as _, bail};
 use itertools::Itertools as _;
-use re_log::warn;
 use urdf_rs::{Geometry, Joint, Link, Material, Robot, Vec3, Vec4};
 
 use re_chunk::{ChunkBuilder, ChunkId, EntityPath, RowId, TimePoint};