The Tegra EHCI driver is no longer using these custom functions, so they
can be removed.
Signed-off-by: NTuomas Tynkkynen <ttynkkynen@nvidia.com>
Reviewed-by: NStephen Warren <swarren@nvidia.com>
Tested-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>