Bug 1521295 - Remove XUL grid layout from security/manager/pki/resources/content/downloadcert.xul. r=jaws

Differential Revision: https://phabricator.services.mozilla.com/D17062

--HG--
extra : moz-landing-system : lando

security/manager/pki/resources/content/downloadcert.xul

@@ -47,20 +47,12 @@
   <vbox>
     <description>&downloadCert.message3;</description>
     <separator/>
-    <grid>
-      <columns>
-        <column/>
-        <column/>
-      </columns>
-      <rows>
-        <row>
+    <hbox>
       <button id="viewC-button"
               label="&downloadCert.viewCert.label;"
               oncommand="viewCert();"/>
       <description style="margin: 4px;">&downloadCert.viewCert.text;</description>
-        </row>
-      </rows>
-    </grid>
+    </hbox>
   </vbox>
 
 </dialog>