Remove extraneous ProjectTypeGuids causing load failures

Several projects are no longer loading correctly in VS for me.  It's happening for projects and only for projects that contain a <ProjectTypeGuids/> node in the .csproj, related to portable libraries.  These entries are unnecessary, and I'm simply deleting them, after which the projects load in VS successfully.

Author: stephentoub

src/System.IO.FileSystem.Watcher/System.IO.FileSystem.Watcher.sln

@@ -6,10 +6,6 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "System.IO.FileSystem.Watche
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "System.IO.FileSystem.Watcher.Tests", "tests\System.IO.FileSystem.Watcher.Tests.csproj", "{20411A66-C7A4-4941-8FA2-66308365FD22}"
 EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Tests", "Tests", "{4B06330D-B839-4D9B-AC32-D510B7AB9FB9}"
-EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Common", "Common", "{613515D7-B799-4EB8-B262-C54A2279C77B}"
-EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Linux_Debug|Any CPU = Linux_Debug|Any CPU
@@ -44,9 +40,4 @@ Global
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
-	GlobalSection(NestedProjects) = preSolution
-		{20411A66-C7A4-4941-8FA2-66308365FD22} = {4B06330D-B839-4D9B-AC32-D510B7AB9FB9}
-		{BE8ED8C1-C314-4C4E-A929-64C9C8B3552A} = {613515D7-B799-4EB8-B262-C54A2279C77B}
-		{613515D7-B799-4EB8-B262-C54A2279C77B} = {4B06330D-B839-4D9B-AC32-D510B7AB9FB9}
-	EndGlobalSection
 EndGlobal

src/System.IO.FileSystem.Watcher/tests/System.IO.FileSystem.Watcher.Tests.csproj

@@ -5,7 +5,6 @@
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <ProjectGuid>{20411A66-C7A4-4941-8FA2-66308365FD22}</ProjectGuid>
-    <ProjectTypeGuids>{786C830F-07A1-408B-BD7F-6EE04809D6DB};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
     <OutputType>Library</OutputType>
     <AssemblyName>System.IO.FileSystem.Watcher.Tests</AssemblyName>
   </PropertyGroup>

src/System.Xml.XDocument/tests/Properties/System.Xml.XDocument.Properties.Tests.csproj

@@ -5,7 +5,6 @@
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <ProjectGuid>{D24E2563-7A46-4368-94D4-B3A39E9EF1B5}</ProjectGuid>
-    <ProjectTypeGuids>{786C830F-07A1-408B-BD7F-6EE04809D6DB};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
     <OutputType>Library</OutputType>
     <AssemblyName>System.Xml.XDocument.Properties.Tests</AssemblyName>
     <RootNamespace>CoreXml.Test.XLinq</RootNamespace>

src/System.Xml.XDocument/tests/SDMSample/System.Xml.XDocument.SDMSample.Tests.csproj

@@ -5,7 +5,6 @@
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <ProjectGuid>{F6C73170-9333-4B52-B3FA-A536C5EA6A48}</ProjectGuid>
-    <ProjectTypeGuids>{786C830F-07A1-408B-BD7F-6EE04809D6DB};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
     <OutputType>Library</OutputType>
     <AssemblyName>System.Xml.XDocument.SDMSample.Tests</AssemblyName>
     <RootNamespace>CoreXml.Test.XLinq</RootNamespace>

src/System.Xml.XDocument/tests/Streaming/System.Xml.XDocument.Streaming.Tests.csproj

@@ -5,7 +5,6 @@
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <ProjectGuid>{CB11B315-2567-4574-977D-89E3135243C4}</ProjectGuid>
-    <ProjectTypeGuids>{786C830F-07A1-408B-BD7F-6EE04809D6DB};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
     <OutputType>Library</OutputType>
     <AssemblyName>System.Xml.XDocument.Streaming.Tests</AssemblyName>
     <RootNamespace>CoreXml.Test.XLinq</RootNamespace>

src/System.Xml.XDocument/tests/TreeManipulation/System.Xml.XDocument.TreeManipulation.Tests.csproj

@@ -5,7 +5,6 @@
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <ProjectGuid>{10EFE488-FAB4-43DA-847D-FF057BFF52AC}</ProjectGuid>
-    <ProjectTypeGuids>{786C830F-07A1-408B-BD7F-6EE04809D6DB};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
     <OutputType>Library</OutputType>
     <AssemblyName>System.Xml.XDocument.TreeManipulation.Tests</AssemblyName>
     <RootNamespace>XLinqTests</RootNamespace>

src/System.Xml.XDocument/tests/XDocument.Common/XDocument.Common.csproj

@@ -5,7 +5,6 @@
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <ProjectGuid>{52666206-B6C9-49FA-A1D7-D0A0C68807B0}</ProjectGuid>
-    <ProjectTypeGuids>{786C830F-07A1-408B-BD7F-6EE04809D6DB};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
     <OutputType>Library</OutputType>
     <AssemblyName>cXDocument.Common</AssemblyName>
     <RootNamespace>CoreXml.Test.XLinq</RootNamespace>

src/System.Xml.XDocument/tests/XDocument.Test.ModuleCore/XDocument.Test.ModuleCore.csproj

@@ -5,7 +5,6 @@
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <ProjectGuid>{979510CE-9042-4F8D-9C74-EE03B89194CC}</ProjectGuid>
-    <ProjectTypeGuids>{786C830F-07A1-408B-BD7F-6EE04809D6DB};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
     <OutputType>Library</OutputType>
     <AssemblyName>XDocument.Test.ModuleCore</AssemblyName>
     <RootNamespace>Microsoft.Test.ModuleCore</RootNamespace>

src/System.Xml.XDocument/tests/misc/System.Xml.XDocument.Misc.Tests.csproj

@@ -5,7 +5,6 @@
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <ProjectGuid>{35FA1FA9-A504-4B9E-93F0-E5D03C21BECA}</ProjectGuid>
-    <ProjectTypeGuids>{786C830F-07A1-408B-BD7F-6EE04809D6DB};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
     <OutputType>Library</OutputType>
     <AssemblyName>System.Xml.XDocument.Misc.Tests</AssemblyName>
     <RootNamespace>CoreXml.Test.XLinq</RootNamespace>

src/System.Xml.XDocument/tests/xNodeBuilder/System.Xml.XDocument.xNodeBuilder.Tests.csproj

@@ -5,7 +5,6 @@
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <ProjectGuid>{5D4FB9ED-C3AC-4EFA-9FEE-619ED4B4B92D}</ProjectGuid>
-    <ProjectTypeGuids>{786C830F-07A1-408B-BD7F-6EE04809D6DB};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
     <OutputType>Library</OutputType>
     <AssemblyName>System.Xml.XDocument.xNodeBuilder.Tests</AssemblyName>
     <RootNamespace>CoreXml.Test.XLinq</RootNamespace>