Don't list session.conf in CLEANFILES
Don't list session.conf in CLEANFILES

Since it's generated by AC_CONFIG_FILES, it already has rebuild and clean
rules generated for it. Adding it to CLEANFILES breaks this.

pwithnall/folks,renatofilho/folks,GNOME/folks,GNOME/folks,GNOME/folks,renatofilho/folks,renatofilho/folks2,renatofilho/folks2,renatofilho/folks2,pwithnall/folks,renatofilho/folks,renatofilho/folks,renatofilho/folks2,pwithnall/folks