Merge pull request #149 from SciML/remove-get-extension-compat

Remove Julia v1.9 get_extension compatibility code

Author: ChrisRackauckas

Project.toml

@@ -12,7 +12,6 @@ FastClosures = "9aa1b823-49e4-5ca5-8b0f-3971ec8bab6a"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 PDMats = "90014a1f-27ba-587c-ab20-58faa44d9150"
 Reexport = "189a3867-3050-52da-a836-e630ba90ab69"
-Requires = "ae029012-a4dd-5104-9daa-d747884805df"
 SciMLBase = "0bca4576-84f4-4d90-8ffe-ffa030f20462"
 SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 SparseConnectivityTracer = "9f842d2f-2579-4b1d-911e-f412cf18a3f5"
@@ -55,7 +54,6 @@ MLUtils = "0.4"
 ModelingToolkit = "9, 10"
 PDMats = "0.11"
 Reexport = "1.2"
-Requires = "1"
 ReverseDiff = "1.14"
 SciMLBase = "2"
 SparseConnectivityTracer = "0.6, 1"

src/OptimizationBase.jl

@@ -4,10 +4,6 @@ using DocStringExtensions
 using Reexport
 @reexport using SciMLBase, ADTypes
 
-if !isdefined(Base, :get_extension)
-    using Requires
-end
-
 using ArrayInterface, Base.Iterators, SparseArrays, LinearAlgebra
 import SciMLBase: OptimizationProblem,
                   OptimizationFunction, ObjSense,