Fix libgit2sharp reference in unit tests

Author: shana

src/UnitTests/UnitTests.csproj

@@ -38,6 +38,9 @@
       <HintPath>..\..\packages\EntryExitDecorator.Fody.0.3.0\lib\net45\EntryExitDecoratorInterfaces.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="LibGit2Sharp">
+      <HintPath>..\..\lib\LibGit2Sharp.dll</HintPath>
+    </Reference>
     <Reference Include="Microsoft.Reactive.Testing, Version=2.2.5.0, Culture=neutral, PublicKeyToken=62aa029873c516b4, processorArchitecture=MSIL">
       <HintPath>..\..\packages\Rx-Testing.2.2.5-custom\lib\net45\Microsoft.Reactive.Testing.dll</HintPath>
       <Private>True</Private>
@@ -183,10 +186,6 @@
       <Project>{B4E665E5-6CAF-4414-A6E2-8DE1C3BCF203}</Project>
       <Name>Akavache_Net45</Name>
     </ProjectReference>
-    <ProjectReference Include="..\..\submodules\libgit2sharp\LibGit2Sharp\LibGit2Sharp.csproj">
-      <Project>{ee6ed99f-cb12-4683-b055-d28fc7357a34}</Project>
-      <Name>LibGit2Sharp</Name>
-    </ProjectReference>
     <ProjectReference Include="..\..\submodules\octokit.net\Octokit.Reactive\Octokit.Reactive.csproj">
       <Project>{674B69B8-0780-4D54-AE2B-C15821FA51CB}</Project>
       <Name>Octokit.Reactive</Name>