Restore return statement erroneously deleted earlier

* Screwed up in I1f6e31bfd2e7c32bdd7886e54b02fd4640a96e6f

Bug: 5205488
Bug: 5203883
Change-Id: I619135bd5dd8359b4b0573316482356a9b517865

emailcommon/src/com/android/emailcommon/Device.java

@@ -64,6 +64,8 @@ public class Device {
                     if (!f.delete()) {
                         Log.e(Logging.LOG_TAG, "Can't delete null deviceName file; try overwrite.");
                     }
+                } else {
+                    return id;
                 }
             } else {
                 Log.w(Logging.LOG_TAG, f.getAbsolutePath() + ": File exists, but can't read?" +