Allow setting hints for multi-line wxTextCtrl when supported.

Don't prevent people from using hints in wxMSW and wxGTK2, where they work
with multiline text controls too, even though they do not work with wxGTK3 nor
wxOSX.

Closes #14456.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@78316 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/textcmn.cpp

@@ -1178,14 +1178,6 @@ bool wxTextCtrlBase::EmulateKeyPress(const wxKeyEvent& event)
 // Other miscellaneous stuff
 // ----------------------------------------------------------------------------
 
-bool wxTextCtrlBase::SetHint(const wxString& hint)
-{
-    wxCHECK_MSG( IsSingleLine(), false,
-                 wxS("Hints can only be set for single line text controls") );
-
-    return wxTextEntry::SetHint(hint);
-}
-
 // do the window-specific processing after processing the update event
 void wxTextCtrlBase::DoUpdateWindowUI(wxUpdateUIEvent& event)
 {