[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 840efa0ff7ae0ba91f04771e880197e507af6b40..f22815a7944ed4c6b937b8cecd4e4d1506d73ef7 100644
--- a/pkg/kernel/binary.md
+++ b/pkg/kernel/binary.md
@@ -1006,12 +1006,6 @@ 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;
 }