Revert "GTK: Finalize the copy/pasting workaround."
Revert "GTK: Finalize the copy/pasting workaround."

This reverts commit 6c258c5a78c5d9d09263a48fc12b9e22f381337f.

Too slow + it sometimes copies then wrong text, e.g. with "copy-url".

jmercouris/NeXT,jmercouris/NeXT