Documentation: devicetree: Remove Armadeus bindings from kernel

This is a preparation change for merging android-4.19-q.73 into
msm-4.19 branch.

Remove Armadeus ST0700 Adapt bindings from kernel added by [1].
[1] is conflicting against [2] in msm-4.19.

[1] 87c36921("drm/panel: Add support for Armadeus ST0700 Adapt").
[2] 728aba9a("Documentation: devicetree: Remove devicetree bindings from kernel")

Change-Id: I15c53c5cbdb090530dbaf744a86df52232a01c8f
Signed-off-by: Ivaylo Georgiev <irgeorgiev@codeaurora.org>