Remove dead comment

...that had been introduced in aecda33a2b
"#90370# Attribute Display uses FixedText instead of MultiLineEdit" together
with code that is long gone again:

+    // temporary to avoid incompatibility
+#if SUPD < 641 || defined( GT_DEBUG )
+    aSearchFormatsED.Hide();
+    aReplaceFormatsED.Hide();
+

Change-Id: If93425a3815f4946f97657f03bf066ee6ca4e6a4
Reviewed-on: https://gerrit.libreoffice.org/62363
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

svx/source/dialog/srchdlg.cxx

@@ -413,7 +413,6 @@ void SvxSearchDialog::dispose()
 
 void SvxSearchDialog::Construct_Impl()
 {
-    // temporary to avoid incompatibility
     pImpl.reset( new SearchDlg_Impl() );
     pImpl->aSelectionTimer.SetTimeout( 500 );
     pImpl->aSelectionTimer.SetInvokeHandler(