remove sleep calls from Runnable

Foundation/include/Poco/Runnable.h

@@ -58,11 +58,6 @@ public:
 	virtual void run() = 0;
 		/// Do whatever the thread needs to do. Must
 		/// be overridden by subclasses.
-
-protected:
-	void sleep(long milliseconds);
-
-	bool trySleep(long milliseconds);
 };
 
 

Foundation/include/Poco/Thread.h

@@ -187,7 +187,7 @@ public:
 	bool isRunning() const;
 		/// Returns true if the thread is running.
 
-	bool trySleep(long milliseconds);
+	static bool trySleep(long milliseconds);
 		/// Starts an interruptible sleep. When trySleep() is called,
 		/// the thread will remain suspended until:
 		///   - the timeout expires or