Revert inline objects PR (#4125)

* Revert "Inline objects (#3756)"

This reverts commit f987572795.

* fix rebase problems

* more rebase fixes

* add back debug statement

java/runtime/src/main/resources/ray.default.conf

@@ -92,8 +92,6 @@ ray {
 
     // See src/ray/ray_config_def.h for options.
     config {
-      // Maximum size of an inline object (bytes).
-      inline_object_max_size_bytes: 0
     }
   }