Remove mode in playground

Author: nojaf

CHANGELOG.md

@@ -21,6 +21,7 @@
 #### :boom: Breaking Change
 
 - Replace ~date with ~day in Date.make\*. https://github.com/rescript-lang/rescript/pull/7324
+- Remove `-bs-jsx-mode`. https://github.com/rescript-lang/rescript/pull/7327
 
 #### :house: Internal
 

compiler/jsoo/jsoo_playground_main.ml

@@ -488,8 +488,6 @@ module Compile = struct
       let types_signature = ref [] in
       Js_config.jsx_version := Some Js_config.Jsx_v4;
       (* default *)
-      Js_config.jsx_mode := Js_config.Automatic;
-      (* default *)
       let ast = impl str in
       let ast = Ppx_entry.rewrite_implementation ast in
       let typed_tree =