Mark Compat.SparseArrays from #459 for deprecation

Author: martinholters

README.md

@@ -58,9 +58,6 @@ Currently, the `@compat` macro supports the following syntaxes:
 * `using Compat.Unicode` is provided on versions older than 0.7, where this library is not
   yet a part of the standard library. ([#25021])
 
-* `using Compat.SparseArrays` is provided on versions older than 0.7, where this library is
-  not yet part of the standard library ([#25249]).
-
 * `using Compat.Random` is provided on versions older than 0.7, where this library is
   not yet part of the standard library ([#24874]).
 

src/Compat.jl

@@ -25,17 +25,11 @@ import Libdl
 const AbstractDateTime = Compat.Dates.AbstractDateTime
 import Printf
 import LinearAlgebra
+import SparseArrays
 
 
 include("compatmacro.jl")
 
-if VERSION < v"0.7.0-DEV.3389"
-    const SparseArrays = Base.SparseArrays
-else
-    import SparseArrays
-end
-
-
 # v"0.7.0-beta.234" introduced Random.gentype (formerly Base.eltype)
 # v"0.7.0-beta2.171" deprecated Random.srand in favor of Random.seed! (unexported)
 # v"0.7.0-DEV.3406" moved Base.Random to stdlib Random