Remove extra entry in Version.Details.xml

Author: MackinnonBuck

eng/Version.Details.xml

@@ -295,10 +295,6 @@
       <Uri>https://github.com/dotnet/dotnet</Uri>
       <Sha>a4d6fdc935d5da12efb00a0b3b693ff1439e0b41</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.Bcl.Memory" Version="10.0.0-preview.4.25177.9">
-      <Uri>https://github.com/dotnet/runtime</Uri>
-      <Sha>fa004fb5ce5ec9f99d1c3ba3adc48c9473cc8eaa</Sha>
-    </Dependency>
     <!-- Transitive package to provide coherency in dotnet/extensions -->
     <Dependency Name="Microsoft.Bcl.TimeProvider" Version="10.0.0-preview.5.25270.108">
       <Uri>https://github.com/dotnet/dotnet</Uri>