fix(arm_fpga): remove explicit cross compiler line from CI script

We already define a (cross) compiler centrally (in common_def.sh), so
there is no need to explicitly set one for the Arm FPGA.

Change-Id: Ie861e1330aab97871e5b6a737b7031ddf1ee829b
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
1 file changed