This reverts commit 51397d7d95.
There are some unresolved random crashes on WRT1900AC v1 that still need
to be sorted out
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Remove the previous PIO delay patch and add a revert patch for a faulty
upstream commit, which seems to have introduced this issue in the first
place
Signed-off-by: Felix Fietkau <nbd@nbd.name>