The removed command was explicitly marked as transitional in commit [1] roughly
three years ago, so finally clean up.
[1] 40d74cb1d0dd ("icecc: Export ICECC_CC and friends via wrapper-script")
(From OE-Core rev: 4459e970c7c1c43f4061b1cb6229d7a3643e1bbc)
Signed-off-by: Ulrich Ölmann <u.oelmann@pengutronix.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>