Revert "twl4030_charger: correctly handle -EPROBE_DEFER from devm_usb_get_phy_by_node"

Revert commit 3fc3895e

, since
it introduced a boot failure on some OMAP platforms.

Reported-by: Kevin Hilman <khilman@kernel.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>