Remove unnecessarily nested else clauses

Change-Id: I04f601d2a3bb8a80de7f2ee44cae73eba61ae286

gitiles-servlet/src/main/java/com/google/gitiles/BaseServlet.java

diff --git a/gitiles-servlet/src/main/java/com/google/gitiles/BaseServlet.java b/gitiles-servlet/src/main/java/com/google/gitiles/BaseServlet.java
index a7bf02a..1e7c1da 100644
--- a/gitiles-servlet/src/main/java/com/google/gitiles/BaseServlet.java
+++ b/gitiles-servlet/src/main/java/com/google/gitiles/BaseServlet.java
@@ -77,9 +77,8 @@
   public static Map<String, String> menuEntry(String text, String url) {
     if (url != null) {
       return ImmutableMap.of("text", text, "url", url);
-    } else {
-      return ImmutableMap.of("text", text);
     }
+    return ImmutableMap.of("text", text);
   }
 
   public static boolean isStreamingResponse(HttpServletRequest req) {