[MD settings] removing .css files from internet settings

chrome/browser/resources/settings/internet_page/network_apnlist.html

 <link rel="import" href="chrome://resources/html/polymer.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-button/paper-button.html">
 <link rel="import" href="chrome://resources/cr_elements/network/cr_onc_types.html">
 <link rel="import" href="network_property_list.html">
 
 <dom-module id="network-apnlist">
-  <link rel="import" type="css" href="network_apnlist.css">
   <template>
+    <style>
+      #outerDiv {
+        margin-bottom: 10px;
+      }
+
+      #selectDiv {
+        margin-bottom: 10px;
+      }
+
+      #selectDiv select {
+        -webkit-margin-start: 10px;
+        padding: 5px;
+      }
+
+      #otherDiv network-property-list {
+        -webkit-margin-start: 15px;
+      }
+    </style>
     <div id="outerDiv" class="layout vertical">
       <div id="selectDiv" class="layout horizontal center">
         <span>Access Point:</span>
         <!-- TODO(stevenjb): Use cr-dropdown-menu once available. -->
         <select id="selectApn" value="{{selectedApn::change}}"
             on-change="onSelectApnChange_">
           <template is="dom-repeat"
               items="[[apnSelectList]]" on-dom-change="onSelectApnUpdated_">
             <option value="[[item.AccessPointName]]">[[apnDesc_(item)]]</option>
           </template>
         </select>
       </div>
       <div id="otherDiv" class="layout vertical"
           hidden$="[[!isOtherSelected_(networkProperties, selectedApn)]]">
         <network-property-list
             fields="[[otherApnFields_]]" property-dict="[[otherApn]]"
             edit-field-types="[[otherApnEditTypes_]]"
             on-property-change="onOtherApnChange_">
         </network-property-list>
         <paper-button on-tap="onSaveOtherTap_">Save</paper-button>
       </div>
     </div>
   </template>
   <script src="network_apnlist.js"></script>
 </dom-module>