Bug 1489063 - Remove unused autocomplete-textbox class. r=standard8

browser/base/content/urlbarBindings.xml

@@ -35,7 +35,7 @@ file, You can obtain one at http://mozilla.org/MPL/2.0/.
                       required="required"
                       xbl:inherits="textoverflow,focused"/>
           <html:input anonid="input"
-                      class="autocomplete-textbox urlbar-input textbox-input"
+                      class="urlbar-input textbox-input"
                       allowevents="true"
                       inputmode="mozAwesomebar"
                       xbl:inherits="value,maxlength,disabled,size,readonly,placeholder,tabindex,accesskey,focused,textoverflow"/>

testing/firefox-ui/tests/functional/keyboard_shortcuts/test_browser_window.py

@@ -45,7 +45,7 @@ class TestBrowserWindowShortcuts(PuppeteerMixin, MarionetteTestCase):
                                    accel=True)
 
         # TODO: Check that the right input box is focused
-        # Located below searchbar as class="autocomplete-textbox textbox-input"
+        # Located below searchbar as class="textbox-input"
         # Anon locator has not been released yet (bug 1080764)
         def has_input_selected(mn):
             selection_name = mn.execute_script("""

toolkit/content/widgets/autocomplete.xml

@@ -16,7 +16,7 @@
 
       <xul:moz-input-box anonid="moz-input-box" flex="1" xbl:inherits="tooltiptext=inputtooltiptext">
         <children/>
-        <html:input anonid="input" class="autocomplete-textbox textbox-input"
+        <html:input anonid="input" class="textbox-input"
                     allowevents="true"
                     xbl:inherits="tooltiptext=inputtooltiptext,value,type=inputtype,maxlength,disabled,size,readonly,placeholder,tabindex,accesskey,mozactionhint"/>
       </xul:moz-input-box>