The ptp_read_system_prets and ptp_read_system_postts functions already
check for the NULL value of the ptp_system_timestamp structure pointer.
There is no need to check this manually in the ice driver code. Remove
the checks.
Reported-by: NJakub Kicinski <kuba@kernel.org>
Signed-off-by: NJacob Keller <jacob.e.keller@intel.com>
Signed-off-by: NTony Nguyen <anthony.l.nguyen@intel.com>