[426684] Remove obsolete o.e.mat.releng* folders

These directories contain build files not used for years

Bug: 426684

Change-Id: I35d3d3b2e34dad1e9f5b4079644e12dc9aa3b82e
Signed-off-by: Krum Tsvetkov <krum.tsvetkov@sap.com>
22 files changed