vsix installation doesn't use nuget

Beckman.Snippets/Beckman.Snippets.csproj

@@ -67,7 +67,6 @@
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
       <IncludeInVSIX>true</IncludeInVSIX>
     </Content>
-    <None Include="Beckman.Snippets.nuspec" />
     <None Include="source.extension.vsixmanifest">
       <SubType>Designer</SubType>
     </None>

Beckman.Snippets/Beckman.Snippets.nuspec

-<?xml version="1.0"?>
-<package >
-  <metadata>
-    <id>$id$</id>
-    <version>$version$</version>
-    <title>$title$</title>
-    <authors>$author$</authors>
-    <owners>$author$</owners>
-    <licenseUrl>file://License.txt</licenseUrl>
-    <requireLicenseAcceptance>false</requireLicenseAcceptance>
-    <description>$description$</description>
-    <releaseNotes>Initial release</releaseNotes>
-    <copyright>Copyright 2016</copyright>
-    <tags>snippets beckman visual studio uiuc</tags>
-  </metadata>
-</package>