core/tracing: remove unnecessary 'copy' field skip in TestAllHooksCalled (ethereum#32622)

This test iterated over Hooks fields and skipped a field named copy. The Hooks struct has no such field, making the condition dead code.

Author: VolodymyrBg

core/tracing/journal_test.go

@@ -280,10 +280,6 @@ func TestAllHooksCalled(t *testing.T) {
 if field.Type.Kind() != reflect.Func {
 continue
 }
-// Skip non-hooks, i.e. Copy
-if field.Name == "copy" {
-continue
-}
 // Skip if field is not set
 if wrappedValue.Field(i).IsNil() {
 continue