Minor unit test fixes.

Change-Id: I800bb33a10f31d5b934b00768bc8fe4776e36f90

tests/src/com/android/inputmethod/latin/BinaryDictionaryTests.java

@@ -44,10 +44,6 @@ public class BinaryDictionaryTests extends AndroidTestCase {
     private static final String TEST_LOCALE = "test";
     private static final String DICTIONARY_ID = "TestBinaryDictionary";
 
-    private static boolean supportsNgram(final int formatVersion) {
-        return formatVersion >= FormatSpec.VERSION403;
-    }
-
     private HashSet<File> mDictFilesToBeDeleted = new HashSet<>();
 
     @Override

tests/src/com/android/inputmethod/latin/InputTestsBase.java

@@ -152,8 +152,6 @@ public class InputTestsBase extends ServiceTestCase<LatinIMEForTests> {
         super(LatinIMEForTests.class);
     }
 
-    // TODO: Isn't there a way to make this generic somehow? We can take a <T> and return a <T>
-    // but we'd have to dispatch types on editor.put...() functions
     protected boolean setBooleanPreference(final String key, final boolean value,
             final boolean defaultValue) {
         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(mLatinIME);