Remove AT&T HTTP proxy URL from Dockerfile(s)

As this is now open-source code, they shouldn't be any reference to
AT&T proxy settings.
One can still configure the HTTP proxy by providing its proxy address,
and by enabling it in docker-files/settings.xml.

Change-Id: I190dc9e01349a9948b2103fb1791191e89b7399d
Signed-off-by: Alexis de Talhouët <adetalhouet89@gmail.com>

0 files changed, 0 insertions, 0 deletions