diff --git a/domain/src/main/java/org/oppia/android/domain/topic/StoryProgressController.kt b/domain/src/main/java/org/oppia/android/domain/topic/StoryProgressController.kt
index 7a8d320a08e..e2830055195 100644
--- a/domain/src/main/java/org/oppia/android/domain/topic/StoryProgressController.kt
+++ b/domain/src/main/java/org/oppia/android/domain/topic/StoryProgressController.kt
@@ -57,8 +57,6 @@ class StoryProgressController @Inject constructor(
   private val dataProviders: DataProviders,
   private val oppiaLogger: OppiaLogger
 ) {
-  // TODO(#3662): Once checkpointing is enabled, remove the function that marks lessons as
-  //  started_not_completed and the tests that test this behaviour.
 
   /** These Statuses correspond to the exceptions above such that if the deferred contains. */
   private enum class StoryProgressActionStatus {
diff --git a/testing/src/test/java/org/oppia/android/testing/story/StoryProgressTestHelperTest.kt b/testing/src/test/java/org/oppia/android/testing/story/StoryProgressTestHelperTest.kt
index b4f2eeca4e0..3eed6951c42 100644
--- a/testing/src/test/java/org/oppia/android/testing/story/StoryProgressTestHelperTest.kt
+++ b/testing/src/test/java/org/oppia/android/testing/story/StoryProgressTestHelperTest.kt
@@ -80,9 +80,6 @@ import javax.inject.Singleton
 @Config(application = StoryProgressTestHelperTest.TestApplication::class)
 class StoryProgressTestHelperTest {
 
-  // TODO(#3662): Once checkpointing is enabled, remove the function that marks lessons as
-  //  started_not_completed and the tests that test this behaviour.
-
   @Rule
   @JvmField
   val mockitoRule: MockitoRule = MockitoJUnit.rule()