Removing display of printer model from add-printer-list tag

The construction of the printer's display name already contains the
model, so displaying it again was redundant.

R=hcarmona@chromium.org, xdai@chromium.org

Bug: 793340
Cq-Include-Trybots: master.tryserver.chromium.linux:closure_compilation
Change-Id: I8ce04994f762b23d44dd2d30a31c4f2f90afbbf5
Reviewed-on: https://chromium-review.googlesource.com/896364Reviewed-by: Xiaoqian Dai <xdai@chromium.org>
Reviewed-by: Hector Carmona <hcarmona@chromium.org>
Commit-Queue: David Valleau <valleau@chromium.org>
Cr-Commit-Position: refs/heads/master@{#534144}

chrome/browser/resources/settings/printing_page/cups_add_printer_dialog_util.html

@@ -24,7 +24,7 @@
       </array-selector>
       <template is="dom-repeat" items="[[printers]]">
         <button class="list-item" on-tap="onSelect_">
-          [[item.printerName]] [[item.printerModel]]
+          [[item.printerName]]
         </button>
       </template>
     </div>