diff --git a/src/main/scala/com/github/shadowsocks/ShadowsocksDeathRecipient.scala b/src/main/scala/com/github/shadowsocks/ShadowsocksDeathRecipient.scala
index cfaae1bd..1fddc083 100644
--- a/src/main/scala/com/github/shadowsocks/ShadowsocksDeathRecipient.scala
+++ b/src/main/scala/com/github/shadowsocks/ShadowsocksDeathRecipient.scala
@@ -2,7 +2,6 @@ package com.github.shadowsocks
 
 import android.os.IBinder
 import android.util.Log
-import com.github.shadowsocks.utils.ProcessUtils._
 
 /**
   * @author chentaov5@gmail.com
@@ -14,15 +13,11 @@ class ShadowsocksDeathRecipient(val mContext: ServiceBoundContext)
 
   override def binderDied(): Unit = {
     Log.d(TAG, "[ShadowsocksDeathRecipient] binder died.")
-
     mContext match {
       case ss: Shadowsocks =>
-        inShadowsocks(mContext) {
-          ss.deattachService
-          ss.attachService
-        }
+        ss.deattachService
+        ss.attachService
       case _ =>
     }
   }
-
 }
diff --git a/src/main/scala/com/github/shadowsocks/utils/ProcessUtils.scala b/src/main/scala/com/github/shadowsocks/utils/ProcessUtils.scala
deleted file mode 100644
index 7ff8029c..00000000
--- a/src/main/scala/com/github/shadowsocks/utils/ProcessUtils.scala
+++ /dev/null
@@ -1,35 +0,0 @@
-package com.github.shadowsocks.utils
-
-import java.io.{BufferedReader, FileInputStream, InputStreamReader}
-
-import android.content.Context
-import com.github.shadowsocks.utils.CloseUtils._
-
-/**
-  * @author chentaov5@gmail.com
-  */
-object ProcessUtils {
-  def getCurrentProcessName = autoClose(new FileInputStream("/proc/self/cmdline")) { inputStream =>
-    autoClose(new BufferedReader(new InputStreamReader(inputStream))) { reader =>
-      val sb = new StringBuilder
-      var c = 0
-      while ({c = reader.read(); c > 0}) sb.append(c.asInstanceOf[Char])
-      sb.toString()
-    }
-  }
-
-  def inShadowsocks(context: Context)(fun: => Unit) {
-    if (context != null && getCurrentProcessName.equals(context.getPackageName)) fun
-  }
-
-
-  def inVpn(context: Context)(fun: => Unit) {
-    if (context != null && getCurrentProcessName.equals(context.getPackageName + ":vpn")) fun
-  }
-
-
-  def inNat(context: Context)(fun: => Unit) {
-    if (context != null && getCurrentProcessName.equals(context.getPackageName + ":nat")) fun
-  }
-
-}