Update .travis.yml

Author: hazzik

.travis.yml

@@ -31,7 +31,6 @@ before_install:
       pushd Firebird-3.0.5.33220-0.amd64
         sudo ./install.sh -silent   
       popd
-      sudo usermod -a -G firebird travis
       export $(sudo cat /opt/firebird/SYSDBA.password | grep -v ^# | xargs)
       sudo chmod 775 /tmp/firebird
       echo -e "nhibernate = /tmp/firebird/nhibernate.fdb" | sudo tee -a /opt/firebird/databases.conf