Removing video streaming audio device from my Mac [duplicate]

Removing ScreenFlow from Your Computer

To uninstall ScreenFlow, simply move the ScreenFlow application to the trash. (The ScreenFlow license is stored separately, so you do not need to re-activate your license if you reinstall ScreenFlow.) To completely remove ScreenFlow from your computer, move the following files to your trash:

• /Applications/ScreenFlow
• /System/Library/Extensions/TelestreamAudio.kext
• /Library/Preferences/net.telestream.screenflow.plist
• ~/Library/Preferences/com.vara.screenflow.LSSharedFileList.plist
• ~/Library/Preferences/com.vara.screenflow.plist
• ~/Library/Preferences/com.vara.screenflowhelper.plist
• ~/Library/Preferences/net.telestream.screenflowapp.LSSharedFileList.plist
• ~/Library/Preferences/net.telestream.screenflowapp.plist
• ~/Library/Preferences/net.telestream.screenflowhelper.plist