Remove AMD/ATI Drivers "Testing Only", "Unsupported Hardware" Watermark

If you have installed latest beta AMD/ATi proprietary drivers watermark will appear in down right corner.

To remove it open text editor and paste:

#!/bin/sh
DRIVER=/usr/lib/fglrx/xorg/modules/drivers/fglrx_drv.so
for x in $(objdump -d $DRIVER|awk '/call/&&/EnableLogo/{print "\\x"$2"\\x"$3"\\x"$4"\\x"$5"\\x"$6}'); do
sed -i "s/$x/\x90\x90\x90\x90\x90/g" $DRIVER
done

save it to Home folder with .sh extension

then right click on file > Permissions and check Allow executions file as program

Now open terminal and type:

sudo ./FILENAME.sh

*replace file name with name of file you saved

Log out and watermark will be gone