Fix duplicate path in CryptoTest proj

***NO_CI***

Author: networkfusion

Tests/CryptoTests/CryptoTests.nfproj

@@ -63,7 +63,6 @@
       <WarningText>Update the Import path in nfproj to the correct nanoFramework.TestFramework NuGet package folder.</WarningText>
     </PropertyGroup>
     <Error Condition="!Exists('..\..\packages\nanoFramework.TestFramework.1.0.191\build\nanoFramework.TestFramework.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\nanoFramework.TestFramework.1.0.191\build\nanoFramework.TestFramework.targets'))" />
-    <Error Condition="!Exists('..\..\packages\nanoFramework.TestFramework.1.0.191\build\nanoFramework.TestFramework.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\nanoFramework.TestFramework.1.0.191\build\nanoFramework.TestFramework.targets'))" />
   </Target>
   <Import Project="..\..\packages\nanoFramework.TestFramework.1.0.191\build\nanoFramework.TestFramework.targets" Condition="Exists('..\..\packages\nanoFramework.TestFramework.1.0.191\build\nanoFramework.TestFramework.targets')" />
-</Project>
+</Project>