Eliminate compiler warning

Change-Id: Ib3effaa6f4e8cfc3951ab5d5d099335fd3856a2f
diff --git a/java/src/com/android/inputmethod/latin/SharedPreferencesCompat.java b/java/src/com/android/inputmethod/latin/SharedPreferencesCompat.java
index 8364c90..1d36c0b 100644
--- a/java/src/com/android/inputmethod/latin/SharedPreferencesCompat.java
+++ b/java/src/com/android/inputmethod/latin/SharedPreferencesCompat.java
@@ -30,8 +30,7 @@
 
     private static Method findApplyMethod() {
         try {
-            Class cls = SharedPreferences.Editor.class;
-            return cls.getMethod("apply");
+            return SharedPreferences.Editor.class.getMethod("apply");
         } catch (NoSuchMethodException unused) {
             // fall through
         }