Removed specializations of std::swap(PeerEntry&, PeerEntry&).

Declaring std::swap(PeerEntry&, PeerEntry&) in class declaration
breaks under Mac OS X 10.5. They are also not used. So we simply
removed them.

src/BtLeecherStateChoke.cc

@@ -239,13 +239,3 @@ const Timer& BtLeecherStateChoke::getLastRound() const
 }
 
 } // namespace aria2
-
-namespace std {
-template<>
-void swap<aria2::BtLeecherStateChoke::PeerEntry>
-(aria2::BtLeecherStateChoke::PeerEntry& a,
- aria2::BtLeecherStateChoke::PeerEntry& b)
-{
-  a.swap(b);
-}
-} // namespace std;

src/BtLeecherStateChoke.h

@@ -118,7 +118,6 @@ public:
   const Timer& getLastRound() const;
 
   friend void swap(PeerEntry& a, PeerEntry& b);
-  friend void std::swap<PeerEntry>(PeerEntry& a, PeerEntry& b);
 };
 
 void swap
@@ -127,11 +126,4 @@ void swap
 
 } // namespace aria2
 
-namespace std {
-template<>
-void swap<aria2::BtLeecherStateChoke::PeerEntry>
-(aria2::BtLeecherStateChoke::PeerEntry& a,
- aria2::BtLeecherStateChoke::PeerEntry& b);
-} // namespace std
-
 #endif // D_BT_LEECHER_STATE_CHOKE_H

src/BtSeederStateChoke.cc

@@ -194,13 +194,3 @@ void swap
 }
 
 } // namespace aria2
-
-namespace std {
-template<>
-void swap<aria2::BtSeederStateChoke::PeerEntry>
-(aria2::BtSeederStateChoke::PeerEntry& a,
- aria2::BtSeederStateChoke::PeerEntry& b)
-{
-  a.swap(b);
-}
-} // namespace std

src/BtSeederStateChoke.h

@@ -103,7 +103,6 @@ public:
   const Timer& getLastRound() const { return lastRound_; }
 
   friend void swap(PeerEntry& a, PeerEntry& b);
-  friend void std::swap<PeerEntry>(PeerEntry& a, PeerEntry& b);
 };
 
 void swap
@@ -112,11 +111,4 @@ void swap
 
 } // namespace aria2
 
-namespace std {
-template<>
-void swap<aria2::BtSeederStateChoke::PeerEntry>
-(aria2::BtSeederStateChoke::PeerEntry& a,
- aria2::BtSeederStateChoke::PeerEntry& b);
-} // namespace std
-
 #endif // D_BT_SEEDER_STATE_CHOKE_H