[Backport 13.4] [BUGFIX] Fix getText flexform syntax (#1532)

* [BUGFIX] Fix getText flexform syntax

* Remove incorrect info about flexform separator character

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Co-authored-by: Georg Tiefenbrunn <georg.tiefenbrunn@gmail.com>

Author: github-actions[bot]

Documentation/Functions/Data.rst

@@ -373,10 +373,9 @@ flexform
 
 ..  confval:: flexform
     :name: data-flexform
-    :Syntax: flexform : [field containing flexform data].[property of this flexform]
+    :Syntax: flexform : [field containing flexform data] : [property of this flexform]
 
-    Access values from :ref:`FlexForms <t3coreapi:flexforms>`, for example inside of :sql:`tt_content` record. In contrast
-    to most parts, deeper levels are accessed through dots, not pipes.
+    Access values from :ref:`FlexForms <t3coreapi:flexforms>`, for example inside of :sql:`tt_content` record.
 
 ..  _data-type-gettext-flexform-example: