diff --git a/app/assets/images/map_zoomin.png b/app/assets/images/map_zoomin.png deleted file mode 100644 index 160a15c08..000000000 Binary files a/app/assets/images/map_zoomin.png and /dev/null differ diff --git a/app/assets/images/map_zoomout.png b/app/assets/images/map_zoomout.png deleted file mode 100644 index 4fea1e6e4..000000000 Binary files a/app/assets/images/map_zoomout.png and /dev/null differ