revert unexpected change

Author: NigelThorne

QRCoderDemoUWP/QRCoderDemoUWP.csproj

@@ -11,13 +11,12 @@
     <AssemblyName>QRCoderDemoUWP</AssemblyName>
     <DefaultLanguage>en-US</DefaultLanguage>
     <TargetPlatformIdentifier>UAP</TargetPlatformIdentifier>
-    <TargetPlatformVersion>10.0.18362.0</TargetPlatformVersion>
-    <TargetPlatformMinVersion>10.0.18362.0</TargetPlatformMinVersion>
+    <TargetPlatformVersion>10.0.10586.0</TargetPlatformVersion>
+    <TargetPlatformMinVersion>10.0.10240.0</TargetPlatformMinVersion>
     <MinimumVisualStudioVersion>14</MinimumVisualStudioVersion>
     <FileAlignment>512</FileAlignment>
     <ProjectTypeGuids>{A5A43C5B-DE2A-4C0C-9213-0A381AF9435A};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
     <PackageCertificateKeyFile>QRCoderDemoUWP_TemporaryKey.pfx</PackageCertificateKeyFile>
-    <RuntimeIdentifiers>win10-arm;win10-arm-aot;win10-x86;win10-x86-aot;win10-x64;win10-x64-aot</RuntimeIdentifiers>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x86'">
     <DebugSymbols>true</DebugSymbols>
@@ -88,6 +87,10 @@
     <Prefer32Bit>true</Prefer32Bit>
     <UseDotNetNativeToolchain>true</UseDotNetNativeToolchain>
   </PropertyGroup>
+  <ItemGroup>
+    <!-- A reference to the entire .Net Framework and Windows SDK are automatically included -->
+    <None Include="project.json" />
+  </ItemGroup>
   <ItemGroup>
     <Compile Include="App.xaml.cs">
       <DependentUpon>App.xaml</DependentUpon>
@@ -128,11 +131,6 @@
       <HintPath>..\QRCoder\bin\Debug\netstandard1.1\QRCoder.dll</HintPath>
     </Reference>
   </ItemGroup>
-  <ItemGroup>
-    <PackageReference Include="Microsoft.NETCore.UniversalWindowsPlatform">
-      <Version>5.0.0</Version>
-    </PackageReference>
-  </ItemGroup>
   <PropertyGroup Condition=" '$(VisualStudioVersion)' == '' or '$(VisualStudioVersion)' &lt; '14.0' ">
     <VisualStudioVersion>14.0</VisualStudioVersion>
   </PropertyGroup>