remove unnecessary auxiliary code

Author: lkdvos

ext/BlockTensorKitGPUArraysExt.jl

@@ -3,33 +3,9 @@ module BlockTensorKitGPUArraysExt
 using BlockTensorKit, BlockArrays, GPUArrays, Strided
 using Strided: StridedViews
 using GPUArrays: KernelAbstractions
-import BlockTensorKit: _full
 
 function KernelAbstractions.get_backend(BA::BlockArrays.BlockArray{T, N, A}) where {T, N, A <: AbstractArray{<:StridedView{T, N, <:AnyGPUArray}}}
     return KernelAbstractions.get_backend(first(BA.blocks))
 end
 
-function BlockTensorKit._full(A::BM) where {T <: Number, TA <: AnyGPUMatrix{T}, BM <: BlockMatrix{T, Matrix{TA}}}
-    arr = similar(first(A.blocks), size(A))
-    # TODO -- should we use Threads here to parallelize these
-    # transfers in streams if possible?
-    for block_index in Iterators.product(blockaxes(A)...)
-        indices = getindex.(axes(A), block_index)
-        arr[indices...] = @view A[block_index...]
-    end
-    return arr
-end
-
-# awful piracy but defined here as BlockArrays doesn't support this well
-function Base.copyto!(dest::BM, src::TA) where {T <: Number, TA <: AnyGPUMatrix{T}, BM <: BlockMatrix{T, Matrix{TA}}}
-    # TODO -- should we use Threads here to parallelize these
-    # transfers in streams if possible?
-    for block_index in Iterators.product(blockaxes(dest)...)
-        indices = getindex.(axes(dest), block_index)
-        dest_view = @view dest[block_index...]
-        dest_view = src[indices...]
-    end
-    return dest
-end
-
 end