Clean up DotNetCoreRuntime project file and associated files

src/Avalonia.DotNetCoreRuntime/Avalonia.DotNetCoreRuntime.csproj

@@ -3,24 +3,8 @@
     <TargetFramework>netcoreapp1.0</TargetFramework>
     <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
   </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
-    <DebugSymbols>true</DebugSymbols>
-    <DebugType>full</DebugType>
-    <Optimize>false</Optimize>
-    <OutputPath>bin\Debug\</OutputPath>
-    <DefineConstants>TRACE;DEBUG;NETSTANDARD</DefineConstants>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-    <DocumentationFile>bin\Debug\Avalonia.DotNetCoreRuntime.XML</DocumentationFile>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)' == 'Release' ">
-    <DebugType>pdbonly</DebugType>
-    <Optimize>true</Optimize>
-    <OutputPath>bin\Release\</OutputPath>
-    <DefineConstants>TRACE;NETSTANDARD</DefineConstants>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-    <DocumentationFile>bin\Release\Avalonia.DotNetCoreRuntime.XML</DocumentationFile>
+  <PropertyGroup>
+    <DocumentationFile>bin\$(Configuration)\Avalonia.DotNetCoreRuntime.XML</DocumentationFile>
   </PropertyGroup>
   <ItemGroup>
     <Compile Include="..\Shared\SharedAssemblyInfo.cs">

src/Shared/PlatformSupport/AssetLoader.cs

@@ -137,7 +137,7 @@ namespace Avalonia.Shared.PlatformSupport
                 {
                     // iOS does not support loading assemblies dynamically!
                     //
-#if NETSTANDARD
+#if NETCOREAPP1_0
                     AssemblyNameCache[name] = rv = new AssemblyDescriptor(Assembly.Load(new AssemblyName(name)));
 #elif __IOS__
                     throw new InvalidOperationException(

src/Shared/PlatformSupport/StandardRuntimePlatform.cs

@@ -12,7 +12,7 @@ namespace Avalonia.Shared.PlatformSupport
     internal partial class StandardRuntimePlatform : IRuntimePlatform
     {
 
-#if NETSTANDARD
+#if NETCOREAPP1_0
         public void PostThreadPoolItem(Action cb) =>  ThreadPool.QueueUserWorkItem(_ => cb(), null);
 #else
         public Assembly[] GetLoadedAssemblies() => AppDomain.CurrentDomain.GetAssemblies();