Revert ANCM installers to build with v141 C++ toolset (#9477)

korebuild.json

@@ -16,6 +16,8 @@
       "requiredWorkloads": [
         "Microsoft.VisualStudio.Component.VC.ATL",
         "Microsoft.VisualStudio.Component.VC.Tools.x86.x64",
+        "Microsoft.VisualStudio.Component.VC.v141.ATL",
+        "Microsoft.VisualStudio.Component.VC.v141.x86.x64",
         "Microsoft.VisualStudio.Component.Windows10SDK.17134"
       ]
     }

src/Installers/Windows/AspNetCoreModule-Setup/CustomAction/aspnetcoreCA.vcxproj

@@ -42,7 +42,7 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup>
     <ConfigurationType>DynamicLibrary</ConfigurationType>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)'=='Release'">

src/Installers/Windows/AspNetCoreModule-Setup/IIS-Setup/IIS-Common/lib/CommonLib.vcxproj

@@ -31,7 +31,7 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup>
     <ConfigurationType>StaticLibrary</ConfigurationType>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)'=='Release'">
     <WholeProgramOptimization>false</WholeProgramOptimization>

src/Installers/Windows/AspNetCoreModule-Setup/IIS-Setup/IIS-Common/reftrace/reftrace.vcxproj

@@ -47,7 +47,7 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup>
     <ConfigurationType>StaticLibrary</ConfigurationType>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)'=='Release'">
     <WholeProgramOptimization>true</WholeProgramOptimization>

src/Installers/Windows/AspNetCoreModule-Setup/IIS-Setup/iisca/lib/iisca.vcxproj

@@ -74,7 +74,7 @@
   <PropertyGroup>
     <ConfigurationType>StaticLibrary</ConfigurationType>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <PropertyGroup Label="Configuration">