Remove unused $u and $username
Remove unused $u and $username

MichaelMaar/concrete5,TimDix/concrete5,MichaelMaar/concrete5,avdevs/concrete5,avdevs/concrete5,MichaelMaar/concrete5,matt9mg/concrete5,TimDix/concrete5,matt9mg/concrete5,matt9mg/concrete5,avdevs/concrete5,TimDix/concrete5