Remove unused "bug tracker file url" UI (#2798)

The "bug tracker file URL" field has been unused for some time and
#2102 removed the column the data
was stored in. The UI was missed in that removal due to a typo in the
HTML. This PR cleans up the rest of the UI.

Author: williamjallen

resources/js/vue/components/EditProject.vue

@@ -249,26 +249,6 @@
                       >
                     </td>
                   </tr>
-                  <tr>
-                    <td />
-                    <td>
-                      <div align="right">
-                        <strong>Bug Tracker File URL:</strong>
-                      </div>
-                    </td>
-                    <td>
-                      <input
-                        id="bugFileURL"
-                        v-model="cdash.project.BugTrackerFilerUrl"
-                        name="bugFileURL"
-                        type="text"
-                        size="50"
-                        @change="cdash.changesmade = true"
-                        @focus="clearHelp()"
-                      >
-                    </td>
-                  </tr>
-
                   <tr>
                     <td />
                     <td>