THRIFT-4879 general performance improvements for netstd library
Client: netstd
Patch: Jens Geyer

Removing obsolete (and finally incorrect) assertion.
diff --git a/lib/netstd/Thrift/Transport/TTransport.cs b/lib/netstd/Thrift/Transport/TTransport.cs
index fd802ec..7998012 100644
--- a/lib/netstd/Thrift/Transport/TTransport.cs
+++ b/lib/netstd/Thrift/Transport/TTransport.cs
@@ -134,7 +134,6 @@
                 _hasPeekByte = false;
                 if (1 == length)
                 {
-                    Debug.Assert(totalBytes == 1);  // what else?
                     return 1; // we're done
                 }
                 ++totalBytes;