Moved commit "Remove unused functions" from ydb repo

Author: nshestakov

src/client/persqueue_public/impl/write_session.h

@@ -89,9 +89,6 @@ class TSimpleBlockingWriteSession : public ISimpleBlockingWriteSession {
 
 private:
     std::optional<TContinuationToken> WaitForToken(const TDuration& timeout);
-    void HandleAck(TWriteSessionEvent::TAcksEvent&);
-    void HandleReady(TWriteSessionEvent::TReadyToAcceptEvent&);
-    void HandleClosed(const TSessionClosedEvent&);
 
     std::atomic_bool Closed = false;
 };

src/client/topic/impl/write_session.h

@@ -85,9 +85,6 @@ class TSimpleBlockingWriteSession : public ISimpleBlockingWriteSession {
 
 private:
     std::optional<TContinuationToken> WaitForToken(const TDuration& timeout);
-    void HandleAck(TWriteSessionEvent::TAcksEvent&);
-    void HandleReady(TWriteSessionEvent::TReadyToAcceptEvent&);
-    void HandleClosed(const TSessionClosedEvent&);
 
     std::atomic_bool Closed = false;
 };