CommitBox: Remove unused parentWebLink elements

Support for parent web links was removed in change I8508dcaf3.

Change-Id: I85dce0d8c29ed6a887a41f274b415b1cedfaec18
diff --git a/gerrit-gwtui/src/main/java/com/google/gerrit/client/change/CommitBox.java b/gerrit-gwtui/src/main/java/com/google/gerrit/client/change/CommitBox.java
index 42963f7..a597beb 100644
--- a/gerrit-gwtui/src/main/java/com/google/gerrit/client/change/CommitBox.java
+++ b/gerrit-gwtui/src/main/java/com/google/gerrit/client/change/CommitBox.java
@@ -55,7 +55,6 @@
     String collapsed();
     String expanded();
     String clippy();
-    String parentWebLink();
   }
 
   @UiField Style style;
@@ -66,7 +65,6 @@
   @UiField FlowPanel webLinkPanel;
   @UiField TableRowElement firstParent;
   @UiField FlowPanel parentCommits;
-  @UiField FlowPanel parentWebLinks;
   @UiField InlineHyperlink authorNameEmail;
   @UiField Element authorDate;
   @UiField InlineHyperlink committerNameEmail;
diff --git a/gerrit-gwtui/src/main/java/com/google/gerrit/client/change/CommitBox.ui.xml b/gerrit-gwtui/src/main/java/com/google/gerrit/client/change/CommitBox.ui.xml
index 5f476be..19f115d 100644
--- a/gerrit-gwtui/src/main/java/com/google/gerrit/client/change/CommitBox.ui.xml
+++ b/gerrit-gwtui/src/main/java/com/google/gerrit/client/change/CommitBox.ui.xml
@@ -88,13 +88,6 @@
       margin-left:2px;
     }
 
-    .parentWebLink a:first-child {
-      margin-left:16px;
-    }
-    .parentWebLink>a {
-      margin-left:2px;
-    }
-
     .commit {
       margin-right: 3px;
       float: left;
@@ -185,9 +178,6 @@
         <td>
           <g:FlowPanel ui:field='parentCommits'/>
         </td>
-        <td>
-          <g:FlowPanel ui:field='parentWebLinks' styleName='{style.parentWebLink}'/>
-        </td>
       </tr>
       <tr>
         <th><ui:msg>Change-Id</ui:msg></th>