Remove dead comment

...which had been dead ever since b525a3115f
"initial import" and whose removal has already been suggested in
04bb20f5ad "Fix typo"

Change-Id: I57d1e284e9c38836dca620fd3d0058fc5c6f098e
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/100854
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

cppu/source/typelib/typelib.cxx

@@ -170,7 +170,6 @@ namespace {
 
 struct TypeDescriptor_Init_Impl
 {
-    //sal_Bool          bDestructorCalled;
     // all type description references
     std::unique_ptr<WeakMap_Impl> pWeakMap;
     // all type description callbacks