Do not update fill suggestion on clipboard changes

This means the user can not copy a Mumble URL while the dialog is open
and fill in the data from it. Instead, he will have to close and reopen
the dialog.

This change is to prevent potential confusion in case the user reads the
fill suggestion, (briefly) switches tasks, and then has different data
in their clipboard. This would also change the suggested fill data,
potentially without the user noticing the change, and then confusion
about the filled data.

src/mumble/ConnectDialog.cpp

@@ -767,8 +767,6 @@ ConnectDialogEdit::ConnectDialogEdit(QWidget *parent) : QDialog(parent) {
 	setWindowTitle(tr("Add Server"));
 	init();
 
-	connect(QApplication::clipboard(), SIGNAL(dataChanged()), this, SLOT(updateFromClipboard()));
-
 	if (!updateFromClipboard()) {
 		// If connected to a server assume the user wants to add it
 		if (g.sh && g.sh->isRunning()) {