[bugfix] MacOS Travis plateform seems to already contain a libgeotiff version 1.4.1_2
[bugfix] MacOS Travis plateform seems to already contain a libgeotiff version 1.4.1_2

The script now unlinks the libgeotiff before installing it
Assuming Travis does not change its MacOS conf we could actually plan no to brew install libgeotiff anymore...

jmichel-otb/s2p,jmichel-otb/s2p,dyoussef/s2p,mnhrdt/s2p,MISS3D/s2p,dyoussef/s2p,jmichel-otb/s2p,MISS3D/s2p,MISS3D/s2p,MISS3D/s2p,dyoussef/s2p,dyoussef/s2p,mnhrdt/s2p,jmichel-otb/s2p,carlodef/s2p,carlodef/s2p