Enable and fix 'Statement unnecessarily nested within else clause' warnings

Change-Id: Ida6df4593fc2ab3c11581309b2b4a638229ea093

gerrit-server/src/main/java/com/google/gerrit/server/git/TransferConfig.java

@@ -67,9 +67,8 @@ public class TransferConfig {
     long local = p.getMaxObjectSizeLimit();
     if (global > 0 && local > 0) {
       return Math.min(global, local);
-    } else {
-      // zero means "no limit", in this case the max is more limiting
-      return Math.max(global, local);
     }
+    // zero means "no limit", in this case the max is more limiting
+    return Math.max(global, local);
   }
 }