function arguments expected

I get this error:
[gamemodes\soccer\gamemode\powerups.lua:47] function arguments expected near ‘timer’

[lua]function ENT:EndTouch ( ent )
if ( ent:IsValid ()) and ( ent:IsPlayer()) then
self.Entity:Remove
timer.Simple ( 30, SpawnNewSpeed ) //Line 47

	end
end[/lua]

I can’t seem to find out whats wrong…

self.Entity:Remove**()**

[editline]dun[/editline]

V what that thing said V

self:Remove()

self.Entity is depreciated.