Don't display project commands multiple times on save of options

On each save of the project options on the ProjectInfoScreen the
project commands are added once more to screen so that they are
displayed multiple times.

Change-Id: I5d9729d7a9870780c550429d841fae14396ef203
Signed-off-by: Edwin Kempin <edwin.kempin@sap.com>
diff --git a/gerrit-gwtui/src/main/java/com/google/gerrit/client/admin/ProjectInfoScreen.java b/gerrit-gwtui/src/main/java/com/google/gerrit/client/admin/ProjectInfoScreen.java
index 7ec0844..f4db4ff 100644
--- a/gerrit-gwtui/src/main/java/com/google/gerrit/client/admin/ProjectInfoScreen.java
+++ b/gerrit-gwtui/src/main/java/com/google/gerrit/client/admin/ProjectInfoScreen.java
@@ -326,6 +326,9 @@
   }
 
   private void initProjectActions(ConfigInfo info) {
+    actionsGrid.clear(true);
+    actionsGrid.removeAllRows();
+
     NativeMap<ActionInfo> actions = info.actions();
     if (actions == null || actions.isEmpty()) {
       return;