remove dead code for handling direct messages, now done with commands
remove dead code for handling direct messages, now done with commands

foocorp/gnu-social,faulteh/gnu-social,brion/StatusNet,bankonme/gnu-social,furtherfield/gnu-social,minmb/statusnet,bankonme/gnu-social,sikevux/bsk-social,d3vgru/StatusNet,eXcomm/gnu-social,d3vgru/StatusNet,shashi/StatusNet,charnimda/lgbtpzn-social,bankonme/gnu-social,d3vgru/StatusNet,bankonme/gnu-social,csarven/statusnet,studio666/gnu-social,znarf/statusnet-ladistribution,brion/StatusNet,zcopley/zcopleys-statusnet-clone,gnusocial/mainline,xebia/statusnet-oauth2,Piratas/tortuga,Piratas/tortuga,zcopley/StatusNet,zh/statusnet,Piratas/tortuga,shashi/StatusNet,faulteh/gnu-social,studio666/gnu-social,sikevux/bsk-social,minmb/statusnet,faulteh/gnu-social,brion/StatusNet,znarf/statusnet-ladistribution,xebia/statusnet-oauth2,charlycoste/StatusNet,zcopley/zcopleys-statusnet-clone,chimo/social,eXcomm/gnu-social,gnusocial/mainline,furtherfield/gnu-social,sikevux/bsk-social,sikevux/bsk-social,charlycoste/StatusNet,znarf/statusnet-ladistribution,zcopley/zcopleys-statusnet-clone,chimo/social,charnimda/lgbtpzn-social,charlycoste/StatusNet,xebia/statusnet-oauth2,csarven/statusnet,csarven/statusnet,minmb/statusnet,zh/statusnet,furtherfield/gnu-social,zcopley/StatusNet,csarven/statusnet,UngPirat/freesocial,eXcomm/gnu-social,UngPirat/freesocial,chimo/social,charnimda/lgbtpzn-social,foocorp/gnu-social,foocorp/gnu-social,furtherfield/gnu-social,zh/statusnet,faulteh/gnu-social,Piratas/tortuga,gnusocial/mainline,studio666/gnu-social,shashi/StatusNet,zcopley/StatusNet,studio666/gnu-social,gnusocial/mainline,eXcomm/gnu-social,UngPirat/freesocial