Bug 252468 Remove outdated autostretch attribute from the tree

patch by Simon Paquet <bugzilla@babylonsounds.com> r=neil rs=bz

suite/common/pref/pref-search.xul

@@ -72,10 +72,6 @@
 
   <groupbox>
     <caption label="&searchResults.label;"/>
-    <!-- XXX - unfortunately we can't have an autostretch never box here
-               because it causes the text not to wrap and the panel content
-               to go offscreen. We need to come up with a better solution
-               to allow wrapping and even focusrings - ben@netscape.com -->
     <checkbox id="openSidebarPanel" label="&openSidebarSearchPanel.label;" accesskey="&openSidebarSearchPanel.accesskey;"
               prefstring="browser.search.opensidebarsearchpanel"/>
   </groupbox>

suite/common/pref/win/platformPrefOverlay.xul

@@ -83,7 +83,6 @@
           <hbox>
             <spacer flex="1"/>
             <button label="&defaultBrowserButton.label;"
-                    autostretch="never"
                     disabled="true"/>
             <spacer flex="1"/>
           </hbox>
@@ -93,7 +92,6 @@
           <hbox>
             <spacer flex="1"/>
             <button label="&defaultBrowserButton.label;"
-                    autostretch="never"
                     disabled="true"/>
             <spacer flex="1"/>
           </hbox>