Don't use memswap_limit for test
Don't use memswap_limit for test

As it could be disabled on the machine that builds and thus give an test
failure for a wrong reason.

See https://jenkins.dockerproject.org/job/Libcompose%20Master/71/console

Signed-off-by: Vincent Demeester <87e1f221a672a14a323e57bb65eaea19d3ed3804@sbr.pm>

weitenghuang/libcompose,vito-c/libcompose,weitenghuang/libcompose,thaJeztah/libcompose,dweomer/docker-libcompose,jainvipin/libcompose,kunalkushwaha/libcompose,Azure22/libcompose,imikushin/libcompose,kunalkushwaha/libcompose,jainvipin/libcompose,Azure22/libcompose,vdemeester/libcompose,thaJeztah/libcompose,dweomer/docker-libcompose,vdemeester/libcompose,imikushin/libcompose,vito-c/libcompose,docker/libcompose,docker/libcompose