build_helper: remove libblas3gf for ubuntu 16.04

liblas3gf have been replaced by libblas3 on 16.04
liblas3* will be pulled by libblas-dev, so we don't need to add it to package list

cmake_targets/tools/build_helper

@@ -300,7 +300,6 @@ check_install_oai_software() {
 	iptables-dev \
 	libatlas-base-dev \
 	libatlas-dev \
-	libblas3gf \
 	libblas-dev \
 	libconfig8-dev \
 	libffi-dev \