remove dataset download from self-hosted runner

.github/scripts/execute_single_benchmark_self_hosted.sh

@@ -18,22 +18,12 @@ if [ "$DATASET_NAME" == "skydio-501" ]; then
   IMAGES_DIR="skydio-crane-mast-501-images"
   COLMAP_FILES_DIRPATH="skydio-501-colmap-pseudo-gt"
 elif [ "$DATASET_NAME" == "tanks-and-temples-barn-410" ]; then
+  # Should be previously downloaded from
+  # https://github.com/johnwlambert/gtsfm-datasets-mirror/releases/download/tanks-and-temples-barn/Tanks_and_Temples_Barn_410.zip
   DATASET_ROOT="Tanks_and_Temples_Barn_410"
   SCENE_NAME="Barn"
 fi
 
-## Download the Tanks & Temples dataset. ################
-WGET_URL1=https://github.com/johnwlambert/gtsfm-datasets-mirror/releases/download/tanks-and-temples-barn/Tanks_and_Temples_Barn_410.zip
-ZIP_FNAME=Tanks_and_Temples_Barn_410.zip
-echo "Downloading ${ZIP_FNAME} with WGET"
-wget -O $DATASET_PREFIX/Tanks_and_Temples_Barn_410.zip $WGET_URL1
-unzip -qq $DATASET_PREFIX/$ZIP_FNAME -d $DATASET_PREFIX
-pwd $DATASET_PREFIX
-ls -ltrh $DATASET_PREFIX
-ls -ltrh $DATASET_PREFIX/$DATASET_ROOT
-rm $DATASET_PREFIX/Tanks_and_Temples_Barn_410.zip
-#########################################
-
 
 echo "Config: ${CONFIG_NAME}, Loader: ${LOADER_NAME}"
 echo "Max. Frame Lookahead: ${MAX_FRAME_LOOKAHEAD}, Image Extension: ${IMAGE_EXTENSION}, Max. Resolution: ${MAX_RESOLUTION}"