Remove docs about editing a field of the containing tiddler

Doesn't apply post v5.2.0

editions/tw5.com/tiddlers/widgets/EditTextWidget.tid

@@ -1,6 +1,6 @@
 caption: edit-text
 created: 20131024141900000
-modified: 20210519154352055
+modified: 20211021091910134
 tags: Widgets
 title: EditTextWidget
 type: text/vnd.tiddlywiki
@@ -37,25 +37,3 @@ The content of the `<$edit-text>` widget is ignored.
 |refreshTitle |<<.from-version 5.1.23>> An optional tiddler title that makes the input field update whenever the specified tiddler changes |
 |disabled|<<.from-version "5.1.23">> Optional, disables the text input if set to "yes". Defaults to "no"|
 |fileDrop|<<.from-version "5.2.0">> Optional. When set to "yes" allows dropping or pasting images into the editor to import them. Defaults to "no"|
-
-! Notes
-
-One trap to be aware of is that the edit text widget //cannot be used// to edit a field of the tiddler that contains it. Each keypress results in the tiddler being re-rendered, which loses the cursor position within the text field.
-
-Instead, place the edit text widget in a [[template|TemplateTiddlers]] that references the tiddler you want to modify.
-
-For example, if you wanted the tiddler GettingStarted to edit the value of the "myconfig" field of the tiddler "AppSettings", you might do so by creating a separate tiddler "ChangeAppSettings" that contains the following:
-
-```
-<$edit-text tiddler="AppSettings" field="myconfig"/>
-```
-
-And reference the template in any other tiddler (e.g. GettingStarted) with `{{ChangeAppSettings}}`.
-
-This works when your use of the tiddler //is not// the AppSettings itself which would cause a recursion problem. In this latter case you have to save the fields to a temporary (or alternative) tiddler (sort of the reverse of above) like so:
-
-```
-<$edit-text tiddler="StoreAppSettings" field="myconfig"/>
-```
-
-In short the EditTextWidget //can not// change properties of the tiddler it is embedded in or part of. It can only change fields of //other// tiddlers. One could use ShadowTiddlers to accomplish the field storage if needed.