removing unused strings.

browser/base/resources/locale/navigator.dtd

@@ -85,8 +85,6 @@
 <!ENTITY reloadButton.tooltip         "Reload current page">
 <!ENTITY stopButton.label             "Stop">
 <!ENTITY stopButton.tooltip           "Stop loading this page">
-<!ENTITY searchButton.label           "Search">
-<!ENTITY searchButton.tooltip         "Type a word in the field to the left, then click Search">
 <!ENTITY goButton.label               "Go">
 <!ENTITY goButton.tooltip             "Type a location in the field to the left, then click Go">
 <!ENTITY printButton.label            "Print">
@@ -97,9 +95,6 @@
 <!ENTITY proxyIcon.tooltip            "Drag and drop this icon to create a link to this page">
 <!ENTITY internetKeyword.tooltip      "Return to previously viewed page or choose keyword">
 
-<!-- Toolbar items --> 
-<!ENTITY  bookmarksButton.label       "Bookmarks">
-<!ENTITY  bookmarksButton.tooltip     "Bookmarks list">
 <!ENTITY  homeButton.label            "Home">
 
 <!-- Statusbar -->