Revert 33825439170a3b2762db5d97d9474170d398e3f0 and 00ddcd302fb9eb38fad5969554189163e1ce7b8a
Revert 33825439170a3b2762db5d97d9474170d398e3f0 and
00ddcd302fb9eb38fad5969554189163e1ce7b8a

ListChans for now will behave as before, and ShowChan isn't currently
needed.

See #914

GLolol/znc,Phansa/znc,elyscape/znc,evilnet/znc,znc/znc,elyscape/znc,GLolol/znc,elyscape/znc,Phansa/znc,jreese/znc,psychon/znc,markusj/znc,kashike/znc,Zarthus/znc,psychon/znc,evilnet/znc,psychon/znc,markusj/znc,elyscape/znc,Phansa/znc,Zarthus/znc,dgw/znc,psychon/znc,elyscape/znc,GLolol/znc,Zarthus/znc,dgw/znc,kashike/znc,DarthGandalf/znc,psychon/znc,markusj/znc,jreese/znc,BtbN/znc,DarthGandalf/znc,dgw/znc,BtbN/znc,markusj/znc,GLolol/znc,DarthGandalf/znc,BtbN/znc,Phansa/znc,dgw/znc,Zarthus/znc,GLolol/znc,evilnet/znc,BtbN/znc,jreese/znc,jreese/znc,kashike/znc,markusj/znc,elyscape/znc,Phansa/znc,evilnet/znc,Phansa/znc,Zarthus/znc,markusj/znc,kashike/znc,znc/znc,GLolol/znc,kashike/znc,evilnet/znc,znc/znc,BtbN/znc,BtbN/znc,dgw/znc,dgw/znc,DarthGandalf/znc,znc/znc,Zarthus/znc,znc/znc,znc/znc,DarthGandalf/znc,evilnet/znc,kashike/znc,DarthGandalf/znc,jreese/znc,psychon/znc,jreese/znc