Don't need to cd twice to the same location [ci skip]

build.sh

@@ -143,6 +143,4 @@ for f in `cat $1 | sed -e '/^\s*#.*/d;/^\s*$/d'`; do
   # Copies the generated wheel to our provisional wheels repository
   run_cmd cp -fv dist/*.whl ${WHEELS_DIR}/
 
-  run_cmd cd ${basedir}
-
 done