Revert "Switch to open source superuser"

This reverts commit 395e884b34aed2d29165ec17b8943e85b603c805.
diff --git a/Android.mk b/Android.mk
index eddeece..fe8ed2d 100644
--- a/Android.mk
+++ b/Android.mk
@@ -13,12 +13,6 @@
 
 LOCAL_PROGUARD_FLAG_FILES := proguard.flags
 
-LOCAL_AAPT_INCLUDE_ALL_RESOURCES := true
-LOCAL_AAPT_FLAGS := --extra-packages com.koushikdutta.superuser:com.koushikdutta.widgets --auto-add-overlay
-
-LOCAL_SRC_FILES += $(call all-java-files-under,../../../external/koush/Superuser/Superuser/src) $(call all-java-files-under,../../../external/koush/Widgets/Widgets/src)
-LOCAL_RESOURCE_DIR := $(LOCAL_PATH)/res $(LOCAL_PATH)/../../../external/koush/Widgets/Widgets/res $(LOCAL_PATH)/../../../external/koush/Superuser/Superuser/res
-
 include $(BUILD_PACKAGE)
 
 # Use the folloing include to make our test apk.
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 94b599a..9d1ef12 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -64,29 +64,6 @@
     <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
     <uses-permission android:name="android.permission.SET_TIME" />
 
-    <permission
-        android:name="android.permission.REQUEST_SUPERUSER"
-        android:protectionLevel="signature" />
-    <permission
-        android:name="android.permission.REPORT_SUPERUSER"
-        android:protectionLevel="signature" />
-
-    <permission-group
-        android:name="android.permission-group.SUPERUSER"
-        android:description="@string/superuser_description_more"
-        android:icon="@drawable/ic_action_permission"
-        android:label="@string/superuser"
-        android:priority="10000" />
-
-    <permission
-        android:name="android.permission.ACCESS_SUPERUSER"
-        android:description="@string/superuser_description_more"
-        android:icon="@drawable/ic_action_permission"
-        android:label="@string/superuser_description"
-        android:logo="@drawable/ic_action_permission"
-        android:permissionGroup="android.permission-group.SUPERUSER"
-        android:protectionLevel="dangerous" />
-
     <application android:label="@string/settings_label"
             android:icon="@mipmap/ic_launcher_settings"
             android:taskAffinity=""
@@ -95,48 +72,6 @@
             android:hardwareAccelerated="true"
             android:supportsRtl="true">
 
-        <!-- Only system/su can open this activity -->
-        <!-- This activity will then call the MultitaskSuRequestActivity to create a new task stack -->
-        <activity
-            android:name="com.koushikdutta.superuser.RequestActivity"
-            android:configChanges="keyboardHidden|orientation|screenSize"
-            android:label="@string/superuser"
-            android:launchMode="singleTask"
-            android:excludeFromRecents="true"
-            android:permission="android.permission.REQUEST_SUPERUSER"
-            android:process=":superuser"
-            android:taskAffinity="com.android.settings.superuser"
-            android:theme="@style/RequestThemeDark" />
-        <!-- Only system/su can open this activity -->
-        <!-- This is activity is started in multiuser mode when the user invoking su -->
-        <!-- is not the device owner (user id 0). -->
-        <activity
-            android:name="com.koushikdutta.superuser.NotifyActivity"
-            android:configChanges="keyboardHidden|orientation|screenSize"
-            android:label="@string/superuser"
-            android:launchMode="singleTask"
-            android:excludeFromRecents="true"
-            android:permission="android.permission.REQUEST_SUPERUSER"
-            android:process=":superuser"
-            android:taskAffinity="com.android.settings.superuser"
-            android:theme="@style/RequestThemeDark" />
-
-        <!-- Multiple instances of this activity can be running for multiple su requests -->
-        <activity
-            android:name="com.koushikdutta.superuser.MultitaskSuRequestActivity"
-            android:configChanges="keyboardHidden|orientation|screenSize"
-            android:excludeFromRecents="true"
-            android:exported="false"
-            android:label="@string/request"
-            android:process=":superuser"
-            android:taskAffinity="com.android.settings.superuser"
-            android:theme="@style/RequestThemeDark" />
-
-        <receiver
-            android:name="com.koushikdutta.superuser.SuReceiver"
-            android:permission="android.permission.REPORT_SUPERUSER" />
-
-
         <!-- Settings -->
 
         <activity android:name="Settings"
diff --git a/proguard.flags b/proguard.flags
index bc0a933..0805d68 100644
--- a/proguard.flags
+++ b/proguard.flags
@@ -12,7 +12,6 @@
 -keep class com.android.settings.accounts.*
 -keep class com.android.settings.fuelgauge.*
 -keep class com.android.settings.users.*
--keep class com.koushikdutta.**
 
 # Keep click responders
 -keepclassmembers class com.android.settings.inputmethod.UserDictionaryAddWordActivity {
diff --git a/res/xml/settings_headers.xml b/res/xml/settings_headers.xml
index 009c111..d9a226d 100644
--- a/res/xml/settings_headers.xml
+++ b/res/xml/settings_headers.xml
@@ -188,13 +188,6 @@
     <header android:id="@+id/system_section"
         android:title="@string/header_category_system" />
 
-    <!-- Superuser -->
-    <header
-        android:id="@+id/superuser"
-        android:fragment="com.koushikdutta.superuser.PolicyNativeFragment"
-        android:icon="@drawable/ic_action_permission"
-        android:title="@string/superuser" />
-
     <!-- Date & Time -->
     <header
         android:id="@+id/date_time_settings"