Adjusting travis.sh for new dub.json

.travis.sh

@@ -3,13 +3,8 @@
 set -e
 
 if [[ $BUILD == dub ]]; then
-    mkdir bin
-
     dub build --build=release --config=client
     dub build --build=release --config=server
-
-    mv dcd-client ./bin
-    mv dcd-server ./bin
 elif [[ $DC == ldc2 ]]; then
     git submodule update --init --recursive
     make ldc -j2