fix(ufs): delete call to inv_dcache_range for utrd

The utrd struct is allocated on the stack by ufs_check_resp's caller.
Invalidating the utrd struct is unnecessary since it's only read from,
and can cause other values stored on the stack (e.g. link register) to
be inadvertently invalidated.

Change-Id: Icd455b52beb2677fafc083d68d0bfa0645b7194b
Signed-off-by: Wing Li <wingers@google.com>