Clearing history in docs/UPDATING
Clearing history in docs/UPDATING

As the ABI breaks everything, there is no point to keep the full source
upgrade documentation tweaks preceding the merge.

Change-Id: I1d5dcc7a7586e6aabd6b671dc2693f4fc9c5391c

veritas-shine/minix3-rpi,veritas-shine/minix3-rpi,veritas-shine/minix3-rpi,veritas-shine/minix3-rpi,veritas-shine/minix3-rpi,veritas-shine/minix3-rpi,veritas-shine/minix3-rpi,veritas-shine/minix3-rpi