diff --git a/src/simulator/time.cc b/src/simulator/time.cc
index 5af878d7c..1aa62a119 100644
--- a/src/simulator/time.cc
+++ b/src/simulator/time.cc
@@ -114,58 +114,4 @@ Time::destroy (void)
     return Time ();
 }
 
-/***
- * XXX
- * API proposal: I don't really like it but it is equivalent
- * what the above API.
- */
-class AbsTimeS : public Time {
-public:
-    AbsTimeS (double s);
-};
-class AbsTimeUs : public Time {
-public:
-    AbsTimeUs (uint64_t us);
-};
-class RelTimeS : public Time {
-public:
-    RelTimeS (double s);
-};
-class RelTimeUs : public Time {
-public:
-    RelTimeUs (uint64_t us);
-};
-
-class NowTime : public Time {
-public:
-    NowTime ();
-};
-
-class DestroyTime : public Time {
-public:
-    DestroyTime ();
-};
-
-
-AbsTimeS::AbsTimeS (double s)
-    : Time ((uint64_t)(int64_t)(s * 1000000000.0))
-{}
-AbsTimeUs::AbsTimeUs (uint64_t us)
-    : Time (us*1000)
-{}
-RelTimeS::RelTimeS (double s)
-    : Time (Simulator::now ().ns () + (int64_t)(s * 1000000000.0))
-{}
-RelTimeUs::RelTimeUs (uint64_t us)
-    : Time (Simulator::now ().ns () + us*1000)
-{}
-
-NowTime::NowTime ()
-    : Time (Simulator::now ().ns ())
-{}
-
-DestroyTime::DestroyTime ()
-    : Time ()
-{}
-
 }; // namespace ns3