Remove forest_cover_edge_sequence function

A generic version now exists in `NamedGraphs.GraphsExtensions`

Author: jack-dunham

src/abstractdatagraph.jl

@@ -453,8 +453,3 @@ function Base.show(io::IO, mime::MIME"text/plain", graph::AbstractDataGraph)
 end
 
 Base.show(io::IO, graph::AbstractDataGraph) = show(io, MIME"text/plain"(), graph)
-
-function GraphsExtensions.forest_cover_edge_sequence(graph::AbstractDataGraph; kwargs...)
-    dummy_graph = add_edges!(NamedGraph(vertices(graph)), edges(graph))
-    return GraphsExtensions.forest_cover_edge_sequence(dummy_graph; kwargs...)
-end