Use <DebugType>portable</DebugType> to avoid embedding the PDBs in the assemblies

Directory.Build.props

@@ -8,6 +8,8 @@
     <NoWarn>$(NoWarn);CS1591;NU5118;NU5128</NoWarn>
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
     <DebugSymbols>true</DebugSymbols>
+    <DebugType>portable</DebugType>
+    <SymbolPackageFormat>snupkg</SymbolPackageFormat>
     <CodeAnalysisRuleset>$(MSBuildThisFileDirectory)eng\CodeAnalysis.ruleset</CodeAnalysisRuleset>
     <ManagePackageVersionsCentrally>true</ManagePackageVersionsCentrally>
     <XlfLanguages>ar;de;es;fr;gu;hi;it;tr;zh-Hans;zh-Hant</XlfLanguages>
@@ -52,7 +54,6 @@
 
   <PropertyGroup Condition=" $(RepoRelativeProjectDir.Contains('src')) ">
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
-    <IncludeSource>true</IncludeSource>
     <IncludeSymbols>true</IncludeSymbols>
     <IsPackable>true</IsPackable>
     <IsShipping>true</IsShipping>