diff --git a/app/src/main/kotlin/org/fossify/calculator/extensions/SharedPreferencesProducerExtensions.kt b/app/src/main/kotlin/org/fossify/calculator/extensions/SharedPreferencesProducerExtensions.kt
deleted file mode 100644
index bf4f4598..00000000
--- a/app/src/main/kotlin/org/fossify/calculator/extensions/SharedPreferencesProducerExtensions.kt
+++ /dev/null
@@ -1,18 +0,0 @@
-package org.fossify.calculator.extensions
-
-import android.content.SharedPreferences
-import kotlinx.coroutines.channels.awaitClose
-import kotlinx.coroutines.flow.callbackFlow
-
-context (SharedPreferences)
-fun <T> sharedPreferencesCallback(
-    value: () -> T?,
-) = callbackFlow {
-    val sharedPreferencesListener =
-        SharedPreferences.OnSharedPreferenceChangeListener { _, _ ->
-            trySend(value())
-        }
-
-    registerOnSharedPreferenceChangeListener(sharedPreferencesListener)
-    awaitClose { unregisterOnSharedPreferenceChangeListener(sharedPreferencesListener) }
-}