fix: #2028 auto enter edit mode for text field. (#2096)" (#2337)

This reverts commit 5afdb5de354c3171eadef64366f9c2267743cb78.

frontend/appflowy_flutter/lib/plugins/database_view/grid/presentation/widgets/header/field_editor.dart

@@ -147,8 +147,6 @@ class _FieldNameTextFieldState extends State<_FieldNameTextField> {
     widget.popoverMutex.listenOnPopoverChanged(() {
       if (focusNode.hasFocus) {
         focusNode.unfocus();
-      } else {
-        focusNode.requestFocus();
       }
     });