Update preprocessor_config.json (#1)

- Update preprocessor_config.json (74bca1ebc8c04ee22c15310f592e7a2f6bab69e9)

preprocessor_config.json

@@ -24,6 +24,5 @@
   "rescale_factor": 0.00392156862745098,
   "size": {
     "shortest_edge": 336
-  },
-  "use_square_size": false
+  }
 }