diff --git a/android/app/src/main/java/com/now/naaga/presentation/common/dialog/DialogType.kt b/android/app/src/main/java/com/now/naaga/presentation/common/dialog/DialogType.kt
deleted file mode 100644
index 5d5bdeb18..000000000
--- a/android/app/src/main/java/com/now/naaga/presentation/common/dialog/DialogType.kt
+++ /dev/null
@@ -1,5 +0,0 @@
-package com.now.naaga.presentation.common.dialog
-
-enum class DialogType {
-    LOCATION, CAMERA
-}
diff --git a/android/app/src/main/java/com/now/naaga/presentation/onadventure/DistinctChildLiveData.kt b/android/app/src/main/java/com/now/naaga/presentation/onadventure/DistinctChildLiveData.kt
deleted file mode 100644
index 18fc7c28d..000000000
--- a/android/app/src/main/java/com/now/naaga/presentation/onadventure/DistinctChildLiveData.kt
+++ /dev/null
@@ -1,20 +0,0 @@
-package com.now.naaga.presentation.onadventure
-
-import androidx.lifecycle.LifecycleOwner
-import androidx.lifecycle.LiveData
-import androidx.lifecycle.Observer
-import java.util.concurrent.atomic.AtomicReference
-
-class DistinctChildLiveData<T>(private val parentLiveData: LiveData<T>) : LiveData<T>() {
-    private val oldData = AtomicReference<T>()
-
-    override fun observe(owner: LifecycleOwner, observer: Observer<in T>) {
-        parentLiveData.observe(owner) { newData: T ->
-            if (oldData.get() != newData) {
-                oldData.set(newData)
-                value = newData
-            }
-            super.observe(owner, observer)
-        }
-    }
-}