[System] Remove explicit sdk target from CSharpCodeCompiler

diff --git a/mcs/class/System/Microsoft.CSharp/CSharpCodeCompiler.cs b/mcs/class/System/Microsoft.CSharp/CSharpCodeCompiler.cs
index 271f500772b62c5e3a254878aa65b8479346e8cf..675d20f06d460620376a2361fa9ffbf8b999bd58 100644 (file)
--- a/mcs/class/System/Microsoft.CSharp/CSharpCodeCompiler.cs
+++ b/mcs/class/System/Microsoft.CSharp/CSharpCodeCompiler.cs
@@ -366,8 +366,6 @@ namespace Mono.CSharp
                                }
                        }
 
-                       args.Append("/sdk:4.5");
-
                        args.Append (" -- ");
                        foreach (string source in fileNames)
                                args.AppendFormat("\"{0}\" ",source);