remove database migration code

app/src/main/java/com/github/libretube/MyApp.kt

@@ -4,22 +4,16 @@ import android.annotation.SuppressLint
 import android.app.Application
 import android.app.NotificationChannel
 import android.app.NotificationManager
-import android.content.Context
 import android.os.Build
 import android.os.StrictMode
 import android.os.StrictMode.VmPolicy
-import androidx.preference.PreferenceManager
 import androidx.work.ExistingPeriodicWorkPolicy
-import com.fasterxml.jackson.core.type.TypeReference
-import com.fasterxml.jackson.databind.ObjectMapper
 import com.github.libretube.api.CronetHelper
 import com.github.libretube.api.RetrofitInstance
 import com.github.libretube.constants.BACKGROUND_CHANNEL_ID
 import com.github.libretube.constants.DOWNLOAD_CHANNEL_ID
 import com.github.libretube.constants.PUSH_CHANNEL_ID
 import com.github.libretube.db.DatabaseHolder
-import com.github.libretube.db.obj.WatchHistoryItem
-import com.github.libretube.db.obj.WatchPosition
 import com.github.libretube.util.ExceptionHandler
 import com.github.libretube.util.ImageHelper
 import com.github.libretube.util.NotificationHelper
@@ -70,16 +64,6 @@ class MyApp : Application() {
         val defaultExceptionHandler = Thread.getDefaultUncaughtExceptionHandler()
         val exceptionHandler = ExceptionHandler(defaultExceptionHandler)
         Thread.setDefaultUncaughtExceptionHandler(exceptionHandler)
-
-        /**
-         * Legacy preference file migration
-         */
-        prefFileMigration()
-
-        /**
-         * Database Migration
-         */
-        databaseMigration()
     }
 
     /**
@@ -126,61 +110,4 @@ class MyApp : Application() {
             notificationManager.createNotificationChannel(channel)
         }
     }
-
-    /**
-     * Migration from old preference files to new one
-     */
-    private fun prefFileMigration() {
-        val legacyUserPrefs = getSharedPreferences("username", Context.MODE_PRIVATE)
-        val username = legacyUserPrefs.getString("username", "")!!
-        if (username != "") {
-            PreferenceHelper.setUsername(username)
-            legacyUserPrefs.edit().putString("username", "").apply()
-        }
-        val legacyTokenPrefs = getSharedPreferences("token", Context.MODE_PRIVATE)
-        val token = legacyUserPrefs.getString("token", "")!!
-        if (token != "") {
-            PreferenceHelper.setToken(token)
-            legacyTokenPrefs.edit().putString("token", "").apply()
-        }
-    }
-
-    /**
-     * Migration from the preferences to the database
-     */
-    private fun databaseMigration() {
-        val prefs = PreferenceManager.getDefaultSharedPreferences(this)
-        val mapper = ObjectMapper()
-
-        Thread {
-            val legacyWatchHistory = prefs.getString("watch_history", "")
-            if (legacyWatchHistory != "") {
-                try {
-                    val type = object : TypeReference<List<WatchHistoryItem>>() {}
-                    val watchHistoryItems = mapper.readValue(legacyWatchHistory, type)
-                    DatabaseHolder.db.watchHistoryDao().insertAll(
-                        *watchHistoryItems.toTypedArray()
-                    )
-                } catch (e: Exception) {
-                }
-                prefs.edit().putString("watch_history", "").apply()
-            }
-            val legacyWatchPositions = prefs.getString("watch_positions", "")
-            if (legacyWatchPositions != "") {
-                try {
-                    val type = object : TypeReference<List<WatchPosition>>() {}
-                    val watchPositions = mapper.readValue(legacyWatchPositions, type)
-                    DatabaseHolder.db.watchPositionDao().insertAll(
-                        *watchPositions.toTypedArray()
-                    )
-                } catch (e: Exception) {
-                }
-                prefs.edit().remove("watch_positions").apply()
-            }
-            prefs.edit()
-                .remove("custom_instances")
-                .remove("local_subscriptions")
-                .apply()
-        }.start()
-    }
 }

app/src/main/java/com/github/libretube/extensions/SetFormattedDuration.kt

@@ -3,7 +3,6 @@ package com.github.libretube.extensions
 import android.text.format.DateUtils
 import android.widget.TextView
 import com.github.libretube.R
-import com.github.libretube.util.ThemeHelper
 
 fun TextView.setFormattedDuration(duration: Long) {
     val text = if (duration < 0L) {