Kaifeng Wang ade35dab2d Remove obsolete trusted boot doc
The OAT project was gone for a long time, the successor opencit was
also in an unmaintained state for a few years, let's remove this
piece from the doc as it can't provide meaningful instructions to be
useful.

Change-Id: If77e1125c05e2351c757c4397ea524617e91926d
2020-10-11 23:33:04 +08:00
..
2020-10-11 23:33:04 +08:00