Revert "r8169: check that Realtek PHY driver module is loaded"

This reverts commit 85a19b0e which is
commit f325937735498afb054a0195291bbf68d0b60be5 upstream.

Heiner writes:
	commit 85a19b0e ("r8169: check that Realtek PHY driver
	module is loaded") made it accidentally to 4.19 and causes an
	issue with Android/x86.  Could you please revert it?

Cc: Heiner Kallweit <hkallweit1@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>