[MD settings] removing .css files from internet settings

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

 <link rel="import" href="chrome://resources/html/polymer.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-icon/iron-icon.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-button/paper-button.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-checkbox/paper-checkbox.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-dialog/paper-dialog.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-input/paper-input.html">
 <link rel="import" href="chrome://resources/cr_elements/network/cr_onc_types.html">
 <link rel="import" href="chrome://md-settings/icons.html">
 <link rel="import" href="network_property_list.html">
 
 <dom-module id="network-siminfo">
-  <link rel="import" type="css" href="network_siminfo.css">
   <template>
+    <style>
+      iron-icon {
+       -webkit-margin-end: 5px;
+       -webkit-margin-start: -3px;
+      }
+
+      paper-button {
+        margin: 0;
+      }
+
+      span {
+        -webkit-margin-end: 10px;
+      }
+
+      #lockedDiv span {
+        color: red;
+        font-weight: 500;
+      }
+
+      #lockedDiv paper-input {
+        -webkit-margin-start: 10px;
+        width: 80px;
+      }
+
+      #unlockSimDialog paper-input {
+        -webkit-margin-start: 5px;
+      }
+
+      #unlockSimDialog span {
+        -webkit-margin-start: 5px;
+      }
+
+      .pin {
+        min-width: 100px;
+      }
+
+      .puk {
+        min-width: 200px;
+      }
+
+      .error {
+        color: red;
+        max-width: 400px;
+      }
+    </style>
     <div id="outerDiv" class="layout vertical">
       <div class="layout horizontal center"
           hidden$="[[networkProperties.Cellular.SIMPresent]]">
         <!-- SIM missing UI -->
         <iron-icon icon="settings:sim-card-alert"></iron-icon>
         <span>Missing SIM card</span>
       </div>
       <div class="layout vertical"
           hidden$="[[!networkProperties.Cellular.SIMPresent]]">
         <div id="lockedDiv" class="layout horizontal center"
@@ skipping 126 matching lines @@
               >[[getErrorMsg_(error)]]
           </span>
           <span>[[getRetriesLeftMsg_(networkProperties)]]</span>
         </div>
       </div>
     </paper-dialog>
 
   </template>
   <script src="network_siminfo.js"></script>
 </dom-module>