Remove conditions from targets imports.

ICSharpCode.Decompiler/ICSharpCode.Decompiler.csproj

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project>
-  <Import Condition=" '$(OS)' == 'Windows_NT' " Sdk="Microsoft.NET.Sdk" Project="Sdk.props" />
+  <Import Sdk="Microsoft.NET.Sdk" Project="Sdk.props" />
 
   <PropertyGroup>
     <TargetFramework Condition=" '$(OS)' != 'Windows_NT' ">netstandard2.0</TargetFramework>
@@ -562,7 +562,7 @@
     <Service Include="{508349b6-6b84-4df5-91f0-309beebad82d}" />
   </ItemGroup>
 
-  <Import Condition=" '$(OS)' == 'Windows_NT' " Sdk="Microsoft.NET.Sdk" Project="Sdk.targets" />
+  <Import Sdk="Microsoft.NET.Sdk" Project="Sdk.targets" />
 
   <Target Name="BeforeBuild">
     <PropertyGroup>