THRIFT-5578 #nullable disable collides with C# lang versions < 8
Client: netstd
Patch: Jens Geyer
diff --git a/compiler/cpp/src/thrift/generate/t_netstd_generator.cc b/compiler/cpp/src/thrift/generate/t_netstd_generator.cc
index d3f3a1b..ad9e579 100644
--- a/compiler/cpp/src/thrift/generate/t_netstd_generator.cc
+++ b/compiler/cpp/src/thrift/generate/t_netstd_generator.cc
@@ -311,8 +311,6 @@
 {
     if( use_net6_features) {
       out << "#nullable enable                 // requires C# 8.0" << endl;
-    } else {
-      out << "#nullable disable                // suppress C# 8.0 nullable contexts (we still support earlier versions)" << endl;
     }
 
     // this one must be first