Remove obsolete Maven Site configuration
Remove obsolete Maven Site configuration

Change-Id: I31d7a0f8c709797cd927fd1eae266f2cbf6418f5
Signed-off-by: Thanh Ha <09ea4d3a79c8bee41a16519f6a431f6bc0fd8d6f@linuxfoundation.org>

opendaylight/bgpcep