remove outdated LabelledNumbers code

Author: ogauthe

Project.toml

@@ -21,13 +21,12 @@ SplitApplyCombine = "03a91e81-4c3e-53e1-a0a4-9c0c8f19dd66"
 TypeParameterAccessors = "7e5a90cf-f82e-492e-a09b-e3e26432c138"
 
 [weakdeps]
-LabelledNumbers = "f856a3a6-4152-4ec4-b2a7-02c1a55d7993"
 TensorAlgebra = "68bd88dc-f39d-4e12-b2ca-f046b68fcc6a"
 TensorProducts = "decf83d6-1968-43f4-96dc-fdb3fe15fc6d"
 
 [extensions]
 BlockSparseArraysGradedUnitRangesExt = "GradedUnitRanges"
-BlockSparseArraysTensorAlgebraExt = ["LabelledNumbers", "TensorProducts", "TensorAlgebra"]
+BlockSparseArraysTensorAlgebraExt = ["TensorProducts", "TensorAlgebra"]
 
 [compat]
 Adapt = "4.1.1"
@@ -40,7 +39,6 @@ Dictionaries = "0.4.3"
 FillArrays = "1.13.0"
 GPUArraysCore = "0.1.0, 0.2"
 GradedUnitRanges = "0.2.2"
-LabelledNumbers = "0.1.0"
 LinearAlgebra = "1.10"
 MacroTools = "0.5.13"
 MapBroadcast = "0.1.5"

ext/BlockSparseArraysTensorAlgebraExt/BlockSparseArraysTensorAlgebraExt.jl

@@ -115,19 +115,4 @@ function Base.axes(a::Adjoint{<:Any,<:AbstractBlockSparseMatrix})
   return dual.(reverse(axes(a')))
 end
 
-# This definition is only needed since calls like
-# `a[[Block(1), Block(2)]]` where `a isa AbstractGradedUnitRange`
-# returns a `BlockSparseVector` instead of a `BlockVector`
-# due to limitations in the `BlockArray` type not allowing
-# axes with non-Int element types.
-# TODO: Remove this once that issue is fixed,
-# see https://github.com/JuliaArrays/BlockArrays.jl/pull/405.
-using BlockArrays: BlockRange
-using LabelledNumbers: label
-function GradedUnitRanges.blocklabels(a::BlockSparseVector)
-  return map(BlockRange(a)) do block
-    return label(blocks(a)[Int(block)])
-  end
-end
-
 end