fix(xilinx): remove unused write_icc_asgi1r_el1()

The commit 427e46ddea1e ("fix(xilinx): fix sending sgi to linux")
removed code which called write_icc_asgi1r_el1() but function itself
wasn't removed.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Change-Id: I95a1424b0546f3f4a5e4611de34441b96e70b7d3
1 file changed