No need to use this hack if you put jumpers to X and Y endstop headers.

The jumpers must be inserted so that READ(X_MIN_PIN) and
READ(Y_MIN_PIN) return 0.
Right offsets for Z auto config probe.
Some temporary tracing stuff.
Do not retract Z-probe.

Retracting does really not work for our static probe.
DO NOT REVERT THIS.