Revert "Fixed missing paste command (#6313)"

This PR caused the double pasting issue on OSX (see #4699)

This reverts commit 5ed32e1.

CHANGELOG.md

@@ -45,7 +45,6 @@ Note that this project **does not** adhere to [Semantic Versioning](http://semve
 - We fixed an issue where the INSPIRE fetcher was no longer working [#6229](https://github.com/JabRef/jabref/issues/6229)
 - We fixed an issue where custom exports with an uppercase file extension could not be selected for "Copy...-> Export to Clipboard" [#6285](https://github.com/JabRef/jabref/issues/6285)
 - We fixed the display of icon both in the main table and linked file editor. [#6169](https://github.com/JabRef/jabref/issues/6169)
-- We fixed the paste entry command in the menu and toolbar, that did not do anything. [#6293](https://github.com/JabRef/jabref/issues/6293)
 - We fixed an issue where the windows installer did not create an entry in the start menu [bug report in the forum](https://discourse.jabref.org/t/error-while-fetching-from-doi/2018/3)
 - We fixed an issue where JabRef switched to discrete graphics under macOS [#5935](https://github.com/JabRef/jabref/issues/5935)
 - We fixed an issue where the Preferences entry preview will be unexpected modified leads to Value too long exception [#6198](https://github.com/JabRef/jabref/issues/6198)

src/main/java/org/jabref/gui/edit/EditAction.java

@@ -62,7 +62,7 @@ public void execute() {
                             frame.getCurrentBasePanel().cut();
                             break;
                         case PASTE:
-                            frame.getCurrentBasePanel().paste();
+                            // handled by FX in TextInputControl#paste
                             break;
                         case DELETE_ENTRY:
                             frame.getCurrentBasePanel().delete(false);