[all] removed environments

data/grid5000/environments/etch-x64-base-1.0.json

data/grid5000/environments/etch-x64-base-1.1.json

data/grid5000/environments/etch-x64-base-2.0.json

data/grid5000/environments/etch-x64-big-1.0.json

data/grid5000/environments/etch-x64-big-1.1.json

data/grid5000/environments/etch-x64-big-2.0.json

data/grid5000/environments/etch-x64-nfs-1.0.json

data/grid5000/environments/etch-x64-nfs-1.1.json

data/grid5000/environments/etch-x64-nfs-2.0.json

data/grid5000/environments/etch-x64-xen-1.0.json

data/grid5000/environments/lenny-x64-base-0.9.json

data/grid5000/environments/lenny-x64-base-1.0.json

data/grid5000/environments/lenny-x64-base-2.0.json

data/grid5000/environments/lenny-x64-base-2.1.json

data/grid5000/environments/lenny-x64-base-2.2.json

data/grid5000/environments/lenny-x64-base-2.3.json

data/grid5000/environments/lenny-x64-base-2.4.json

data/grid5000/environments/lenny-x64-base-2.5.json

data/grid5000/environments/lenny-x64-base-2.6.json

data/grid5000/environments/lenny-x64-base-2.7.json