Merge "Remove unnecessary if-else statement from TextUtils#isEmpty. "

core/java/android/text/TextUtils.java

@@ -456,10 +456,7 @@ public class TextUtils {
      * @return true if str is null or zero length
      */
     public static boolean isEmpty(@Nullable CharSequence str) {
-        if (str == null || str.length() == 0)
-            return true;
-        else
-            return false;
+        return str == null || str.length() == 0;
     }
 
     /** {@hide} */