remove batch variables from GHA tests

.github/workflows/benchmarks.yml

@@ -75,7 +75,7 @@ jobs:
       shell: bash -l {0}
       run: |
         conda activate my_env
-        flexynesis --data_path dataset1 --model_class DirectPred --target_variables Erlotinib --batch_variables Crizotinib --fusion_type early --hpo_iter 1 --features_min 50 --features_top_percentile 5 --log_transform False --data_types gex,cnv --outdir . --prefix erlotinib_direct --early_stop_patience 3 --use_loss_weighting False
+        flexynesis --data_path dataset1 --model_class DirectPred --target_variables Erlotinib --fusion_type early --hpo_iter 1 --features_min 50 --features_top_percentile 5 --log_transform False --data_types gex,cnv --outdir . --prefix erlotinib_direct --early_stop_patience 3 --use_loss_weighting False
 
     - name: Run DirectPred_TestSurvival
       shell: bash -l {0}