Remove uneeded logback.xml
Remove uneeded logback.xml

Log levels are defined in application.properties

sdeleuze/mixit,mix-it/mixit,mix-it/mixit,mix-it/mixit,mixitconf/mixit,mix-it/mixit,sdeleuze/mixit,sdeleuze/mixit,mixitconf/mixit,sdeleuze/mixit,mixitconf/mixit,mixitconf/mixit,mix-it/mixit