Revert "Ensure %w and %# are also expaned in the 'Copy input' dialog"

That fix is not good enough because it makes '%w' being updated only
after keystroke instead of immediately . The issue of updating title is
actually a little more complicated than I have understood.

Revert it because the regression should influence more users than the
fixed problem does. Need to spend more time to find a better fix.

CCBUG: 175755
CCBUG: 287536

This reverts commit 1c1981501b.

src/Session.cpp

@@ -1010,14 +1010,6 @@ QString Session::getDynamicTitle()
         title = process->format(tabTitleFormat(Session::LocalTabTitle));
     }
 
-    // special handling for the "%w" marker which is replaced with the
-    // window title set by the terminal process(shell,mc,vim,etc)
-    title.replace("%w", userTitle());
-
-    // special handling for the "%#" marker which is replaced with the
-    // number of the session
-    title.replace("%#", QString::number(sessionId()));
-
     return title;
 }
 

src/SessionController.cpp

@@ -1122,6 +1122,14 @@ void SessionController::sessionTitleChanged()
     }
 
     QString title = _session->title(Session::DisplayedTitleRole);
+
+    // special handling for the "%w" marker which is replaced with the
+    // window title set by the shell
+    title.replace("%w",_session->userTitle());
+    // special handling for the "%#" marker which is replaced with the 
+    // number of the shell
+    title.replace("%#",QString::number(_session->sessionId()));
+
     if ( title.isEmpty() )
         title = _session->title(Session::NameRole);