Remove unnecessary properties from Blazor WebAssembly project file. (#13894)

src/Components/Blazor/Templates/src/content/BlazorWasm-CSharp/Client/BlazorWasm-CSharp.Client.csproj

@@ -2,8 +2,6 @@
 
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
-    <OutputType>Exe</OutputType>
-    <LangVersion>7.3</LangVersion>
     <RazorLangVersion>3.0</RazorLangVersion>
   </PropertyGroup>