Revert "ChromeVox Touchscreen: issues with left-side menu"

This reverts commit 4e4fb60d.

Reason: The pointer-events need to be set to none so that clicking on
a menu item will not cause the settings window to refresh.

Bug: 1139875
Change-Id: Idffd2e8e74277e970f7bf0531303bcb410060099
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2486453Reviewed-by: Kyle Horimoto <khorimoto@chromium.org>
Commit-Queue: Regan Hsu <hsuregan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#818787}

chrome/browser/resources/settings/chromeos/os_settings_menu/os_settings_menu.html

@@ -66,6 +66,7 @@
         margin-inline-end: 2px;
         min-height: 32px;
         padding-inline-start: 20px;
+        pointer-events: none;
       }
 
       :host-context([dir=rtl]) a > .item {