remove LightGraphs support

Author: hexaeder

Project.toml

@@ -12,20 +12,17 @@ StaticArrays = "90137ffa-7385-5640-81b9-e52037218182"
 [compat]
 GeometryBasics = "0.4"
 Graphs = "1"
-LightGraphs = "1"
 Requires = "1"
 StaticArrays = "1"
 julia = "1.6"
 
 [extensions]
 NetworkLayoutGraphsExt = "Graphs"
-NetworkLayoutLightGraphsExt = "LightGraphs"
 
 [extras]
 DelimitedFiles = "8bb1440f-4735-579b-a4ab-409b98df4dab"
 GeometryTypes = "4d00f742-c7ba-57c2-abde-4428a4b178cb"
 Graphs = "86223c79-3864-5bf0-83f7-82e725a168b6"
-LightGraphs = "093fc24a-ae57-5d10-9952-331d41423f4d"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
@@ -35,4 +32,3 @@ test = ["Graphs", "Test", "DelimitedFiles", "GeometryTypes", "SparseArrays"]
 
 [weakdeps]
 Graphs = "86223c79-3864-5bf0-83f7-82e725a168b6"
-LightGraphs = "093fc24a-ae57-5d10-9952-331d41423f4d"

ext/NetworkLayoutLightGraphsExt.jl

@@ -90,9 +90,6 @@ if !isdefined(Base, :get_extension)
 end
 @static if !isdefined(Base, :get_extension)
     function __init__()
-        @require LightGraphs = "093fc24a-ae57-5d10-9952-331d41423f4d" begin
-            include("../ext/NetworkLayoutLightGraphsExt.jl")
-        end
         @require Graphs = "86223c79-3864-5bf0-83f7-82e725a168b6" begin
             include("../ext/NetworkLayoutGraphsExt.jl")
         end