Remove unnecessary test image copies

ci/test_mapserver_image.sh

@@ -223,14 +223,12 @@ curl_empty_tile() {
     debug "Starting curl basic mapfile request for non-existent tile..."
     # NOTE: The time doesn't actually exist and no image data is available. A blank image should be returned
     curl --fail -sS -o "empty_tile.png" "http://localhost:8888/wms/g16/abi/radf/l1b?VERSION=1.1.1&REQUEST=GetMap&SERVICE=WMS&STYLES=&BBOX=-2500000%2c-2500000%2c2500000%2c2500000&WIDTH=256&HEIGHT=256&FORMAT=rgba&SRS=EPSG%3a930916&LAYERS=C01&TIME=2022-04-20T16:00:12Z" >/dev/null
-    cp empty_tile.png /tmp/empty_tile_test.png
     check_image_content "empty_tile.png" 1
 }
 
 curl_valid_tile() {
     debug "Starting curl basic mapfile request for valid tile..."
     curl --fail -sS -o "valid_tile.png" "http://localhost:8888/wms/g16/abi/radf/l1b?VERSION=1.1.1&REQUEST=GetMap&SERVICE=WMS&STYLES=&BBOX=-2500000%2c-2500000%2c2500000%2c2500000&WIDTH=256&HEIGHT=256&FORMAT=rgba&SRS=EPSG%3a930916&LAYERS=C01&TIME=${C01_ISOTIME}Z" >/dev/null
-    cp valid_tile.png /tmp/valid_tile.png
     check_image_content "valid_tile.png" 0
 }