Remove redundant namespace qualifier
Remove redundant namespace qualifier

oalbe/xcpp,daniellehrner/xcpp,daniellehrner/xcpp,patricksjackson/xcpp,NobbZ/xcpp,lukasz-m-maciejewski/xcpp,lukasz-m-maciejewski/xcpp,NobbZ/xcpp,exercism/xcpp,patricksjackson/xcpp,oalbe/xcpp,exercism/xcpp