Revert "irqchip/imx-irqsteer: Handle runtime power management correctly"

This reverts commit a590e8de which is
commit 33b1c47d1fc0b5f06a393bb915db85baacba18ea upstream.

It breaks the Android kernel abi and can be brought back in the future
in an abi-safe way if it is really needed.

Bug: 161946584
Change-Id: I881226ff7d30ae45297dfe4b4dc7337d7381b907
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>