MD Settings: Remove last usage of paper-item.

chrome/browser/resources/settings/settings_shared_css.html

Index: chrome/browser/resources/settings/settings_shared_css.html
diff --git a/chrome/browser/resources/settings/settings_shared_css.html b/chrome/browser/resources/settings/settings_shared_css.html
index 67406e24b27a85fc27267ff1c73372a3ddaafa22..2cc33ce5ac0f6a9b511c53678c2e3909f599124b 100644
--- a/chrome/browser/resources/settings/settings_shared_css.html
+++ b/chrome/browser/resources/settings/settings_shared_css.html
@@ -53,28 +53,6 @@
         width: 31px;
       }
 
-      iron-dropdown .dropdown-content {
-        min-width: 128px;
-        padding: 8px 0;
-      }
-
-      iron-dropdown .dropdown-item:focus {
-        @apply(--cr-selectable-focus);
-      }
-
-      iron-dropdown .dropdown-content {
-        background-color: white;
-        box-shadow: 0 2px 6px var(--paper-grey-500);
-      }
-
-      iron-dropdown .dropdown-content paper-item {
-        @apply(--settings-actionable);
-      }
-
-      iron-dropdown .dropdown-content .dropdown-item[disabled] {
-        opacity: var(--settings-disabled-opacity);
-      }
-
       span ~ a {
         -webkit-margin-start: 4px;
       }
@@ -337,10 +315,6 @@
         height: var(--settings-row-min-height);
       }
 
-      .settings-box paper-item iron-icon {
-        padding: var(--cr-icon-padding);
-      }
-
       /* Helper for a list frame to automatically avoid the separator line. */
       .vertical-list > *:not(:first-of-type) {
         border-top: var(--settings-separator-line);