Add missing sonar codemods to default codemods (#275)

All current 13 sonar codemods are in DefaultCodemods class

Author: carlosu7

core-codemods/src/main/java/io/codemodder/codemods/DefaultCodemods.java

@@ -37,8 +37,10 @@ public static List<Class<? extends CodeChanger>> asList() {
         OutputResourceLeakCodemod.class,
         PreventFileWriterLeakWithFilesCodemod.class,
         RandomizeSeedCodemod.class,
+        RemoveCommentedCodeCodemod.class,
         RemoveRedundantVariableCreationCodemod.class,
         RemoveUnusedLocalVariableCodemod.class,
+        RemoveUnusedPrivateMethodCodemod.class,
         RemoveUselessParenthesesCodemod.class,
         ReplaceDefaultHttpClientCodemod.class,
         ReplaceStreamCollectorsToListCodemod.class,