Fix for issue joomla#46187 (joomla#46196)

This PR fixes the issue of the deprecated warning by not removing the default_field but setting it to hidden thru the form params instead.

Author: TLWebdesign

plugins/fields/note/params/note.xml

@@ -1,5 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <form>
+	<field
+		name="default_value"
+		type="hidden"
+		filter="unset"
+	/>
 	<fields name="params" label="COM_FIELDS_FIELD_BASIC_LABEL">
 		<fieldset name="renderoptions">
 			<field

plugins/fields/note/src/Extension/Note.php

@@ -47,7 +47,6 @@ public function prepareForm(PrepareFormEvent $event)
             return;
         }
 
-        $form->removeField('default_value');
         $form->removeField('required');
         $form->removeField('hint', 'params');
         $form->removeField('class', 'params');