cleanup code

app/src/main/AndroidManifest.xml

@@ -33,9 +33,5 @@
                 <action android:name="android.net.VpnService" />
             </intent-filter>
         </service>
-        <provider
-            android:authorities="${applicationId}.data"
-            android:name=".DataProvider"
-            android:exported="false"/>
     </application>
 </manifest>

app/src/main/java/com/github/kr328/clash/DataProvider.kt

@@ -1,44 +0,0 @@
-package com.github.kr328.clash
-
-import android.content.ContentProvider
-import android.content.ContentValues
-import android.database.Cursor
-import android.net.Uri
-
-class DataProvider : ContentProvider() {
-    override fun insert(uri: Uri, values: ContentValues?): Uri? {
-        TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
-    }
-
-    override fun query(
-        uri: Uri,
-        projection: Array<out String>?,
-        selection: String?,
-        selectionArgs: Array<out String>?,
-        sortOrder: String?
-    ): Cursor? {
-        TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
-    }
-
-    override fun onCreate(): Boolean {
-        TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
-    }
-
-    override fun update(
-        uri: Uri,
-        values: ContentValues?,
-        selection: String?,
-        selectionArgs: Array<out String>?
-    ): Int {
-        TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
-    }
-
-    override fun delete(uri: Uri, selection: String?, selectionArgs: Array<out String>?): Int {
-        TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
-    }
-
-    override fun getType(uri: Uri): String? {
-        TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
-    }
-
-}

app/src/main/java/com/github/kr328/clash/MainActivity.kt

@@ -1,17 +1,7 @@
 package com.github.kr328.clash
 
-import android.app.Activity
-import android.content.ComponentName
-import android.content.Context
-import android.content.Intent
-import android.content.ServiceConnection
-import android.net.VpnService
 import android.os.Bundle
-import android.os.IBinder
-import android.widget.Toast
 import androidx.appcompat.app.AppCompatActivity
-import kotlinx.android.synthetic.main.activity_main.*
-import kotlin.concurrent.thread
 
 class MainActivity : AppCompatActivity() {
     companion object {

app/src/main/java/com/github/kr328/clash/TunService.kt

@@ -8,10 +8,7 @@ import android.content.ServiceConnection
 import android.net.VpnService
 import android.os.IBinder
 import android.os.ParcelFileDescriptor
-import com.github.kr328.clash.core.ClashProcess
 import com.github.kr328.clash.core.ClashProcessStatus
-import com.github.kr328.clash.core.ClashStatus
-import java.lang.NullPointerException
 
 class TunService : VpnService() {
     companion object {

core/src/main/java/com/github/kr328/clash/core/ClashProcess.kt

@@ -1,7 +1,6 @@
 package com.github.kr328.clash.core
 
 import android.content.Context
-import android.os.Parcelable
 import android.util.Log
 import java.io.File
 import java.io.FileOutputStream