remove results bucket after test

testing/registrar_test.sh

@@ -17,4 +17,6 @@ while read product; do
 done < "$product_list_file"
 
 pytest
-if [ $? -ne 0 ]; then echo "Pytest fail" >&2 && exit 1; fi
\ No newline at end of file
+if [ $? -ne 0 ]; then echo "Pytest fail" >&2 && exit 1; fi
+
+swift delete preprocessor_results