Update nuget files

.nuget/signconfig_desktop.xml

@@ -4,9 +4,7 @@
     <file src="__INPATHROOT__\directxmesh_desktop_2017*.nupkg" signType="CP-401405" dest="__OUTPATHROOT__\directxmesh_desktop_2017*.nupkg" />
     <file src="__INPATHROOT__\directxmesh_desktop_win10*.nupkg" signType="CP-401405" dest="__OUTPATHROOT__\directxmesh_desktop_win10*.nupkg" />
   </job>
-<!--
- <job certSubject="CN=Microsoft Corporation, O=Microsoft Corporation, L=Redmond, S=Washington, C=US" dest="__OUTPATHROOT__" jobname="ISS EngFun" approvers="">
-   <file src="__INPATHROOT__\meshconvert.exe" signType="135020002" dest="__OUTPATHROOT__\meshconvert.exe" />
- </job>
--->
-</SignConfigXML>
+  <job certSubject="CN=Microsoft Corporation, O=Microsoft Corporation, L=Redmond, S=Washington, C=US" dest="__OUTPATHROOT__" jobname="ISS EngFun" approvers="">
+    <file src="__INPATHROOT__\meshconvert.exe" signType="135020002" dest="__OUTPATHROOT__\meshconvert.exe" />
+  </job>
+</SignConfigXML>