Clean Lockscreen is an Xposed Framework module that cleans up your lockscreen by removing the backspace button and dialpad style numbers.

Have a rooted Android phone. Install the Xposed Framework Installer. Use the installer to install the Xposed Framework. Install this app. Enable this module in the Xposed Installer. Reboot phone. Profit.

Xposed Module Repository

You will need Android Studio and Android API 22 installed.

• Create the folder ANDROID_SDK/add-ons/addon-xposed_bridge-rovo89-22/
• Download the Xposed Bridge API to libs/ in your newly created addon folder
• In your new addon folder, paste the following (edited to your version) into manifest.ini

name=Xposed Bridge
vendor=rovo89
description=Xposed Bridge
api=22
revision=64
libraries=de.robv.android.xposed
de.robv.android.xposed=XposedBridgeApi-64.jar;Xposed Bridge

• In the same folder, paste the following (edited to your version) into source.properties

Addon.NameDisplay=Xposed Bridge
Addon.NameId=xposed_bridge
Addon.VendorDisplay=rovo89
Addon.VendorId=rovo89
AndroidVersion.ApiLevel=22
Pkg.Desc=Xposed Bridge
Pkg.License=Apache 2.0
Pkg.LicenseRef=http\://www.apache.org/licenses/LICENSE-2.0
Pkg.Revision=64
Pkg.SourceUrl=https\://github.com/rovo89/XposedBridge

• Running android list targets should then show "rovo89:Xposed Bridge:22"
• Open the project in Android Studio and click build

If you don't want to use Android Studio, you're on your own.