dont call remove_file in cp_filtered, as self.copy will call copy_internal which will call remove_file itself

Author: klensy

src/bootstrap/lib.rs

@@ -1564,7 +1564,6 @@ impl Build {
                     self.create_dir(&dst);
                     self.recurse_(&path, &dst, &relative, filter);
                 } else {
-                    let _ = fs::remove_file(&dst);
                     self.copy(&path, &dst);
                 }
             }