[kernel] Change how TypeParameterType is calculated.

pkg/kernel/binary.md

Index: pkg/kernel/binary.md
diff --git a/pkg/kernel/binary.md b/pkg/kernel/binary.md
index 30c4801506f50386f8552726ab7c8b0f62bbdd86..ad4fb28f10d551d7e646b3cefcf87e2ef58fc476 100644
--- a/pkg/kernel/binary.md
+++ b/pkg/kernel/binary.md
@@ -1004,12 +1004,6 @@ type TypeParameterType extends DartType {
   // the class type parameters in a constructor refer to those declared on the
   // class.
   UInt index;
-
-  // Byte offset in the binary for the first type declaration of the
-  // Class or FunctionNode.
-  UInt typeParameterPosition;
-  // The entry number in the list (starting at 0).
-  UInt typeParameterIndex;
   Option<DartType> bound;
 }