Update Directory.Packages.props

Author: SimonCropp

src/Directory.Packages.props

@@ -29,9 +29,6 @@
     <PackageVersion Include="SimpleInfoName" Version="3.1.0" />
     <PackageVersion Include="System.Drawing.Common" Version="9.0.3" />
     <PackageVersion Include="System.IO.Hashing" Version="9.0.3" />
-    <PackageVersion Include="System.Memory" Version="4.6.0" />
-    <PackageVersion Include="System.Memory" Version="4.6.2" />
-    <PackageVersion Include="System.Memory" Version="4.6.2" />
     <PackageVersion Include="System.Memory" Version="4.6.2" />
     <PackageVersion Include="TextCopy" Version="6.2.1" />
     <PackageVersion Include="TUnit" Version="0.18.40" />