[Clean-up] Planned removal of the `max_size` argument

preprocessor_config.json

@@ -13,6 +13,8 @@
     1.0,
     1.0
   ],
-  "max_size": 1333,
-  "size": 800
-}
+  "size": {
+    "longest_edge": 1333,
+    "shortest_edge": 800
+  }
+}