Update clenshaw.jl

Author: dlfivefifty

src/clenshaw.jl

@@ -51,7 +51,6 @@ function copyto!(dest::AbstractVector, V::SubArray{<:Any,1,<:OrthogonalPolynomia
     dest
 end
 
-_getindex(::Type{Tuple{IND1,IND2}}, P::OrthogonalPolynomial, (x,n)::Tuple{IND1,AbstractVector{IND2}}) where {IND1,IND2} = layout_getindex(P, x, n)
 Base.@propagate_inbounds function _getindex(::Type{IND}, P::OrthogonalPolynomial, (x,n)::IND) where IND
     @boundscheck checkbounds(P, x, n)
     Base.unsafe_getindex(P, x, n)