Removed a line which is no longer applicable.
Removed a line which is no longer applicable.

It refers to the no longer used kernel post-install script.

beylsp/rpi-installer,FooDeas/raspberrypi-ua-netinst,matt2005/raspbian-ua-netinst,kolargol/raspbian-ua-netinst,firepick/FireHawk,daytonpid/FireHawk,yodaaut/raspbian-ua-netinst,racing-tech/rrp-raspi-installer,cybercircuits/raspbian-ua-netinst,racing-tech/rrp-raspi-installer,beylsp/rpi-installer,dicer/raspbian-ua-netinst,malsony/raspbian-ua-netinst