fix默认设置来源为CT站的问题

application/views/mobile_first/trainspread-train-index.php

@@ -38,7 +38,7 @@
             <input type="hidden" name="si" id="si" value="1">
           </div>
         </div>
-        <input type="hidden" name="utm_source" id="utm_source" value="32150">
+        <input type="hidden" name="utm_source" id="utm_source" value="">
       </form>
       <form action="https://www.trainspread.com/trains/search_result/" method="POST" name="ZZform1"
         target="_self" class="formWrap form-inline jsbox hidden" onsubmit="return Chk_IntelTrainForm();">
@@ -78,7 +78,7 @@
           </div>
           <input type="hidden" name="ItelTrain" id="ItelTrain" value="0">
         </div>
-        <input type="hidden" name="utm_source" id="utm_source2" value="32150">
+        <input type="hidden" name="utm_source" id="utm_source2" value="">
       </form>