Fixed documentation

Signed-off-by: Miro Palmu <miro.palmu@helsinki.fi>

src/include/kompute/Sequence.hpp

@@ -217,16 +217,12 @@ class Sequence : public std::enable_shared_from_this<Sequence>
     /**
      * Begins recording commands for commands to be submitted into the command
      * buffer.
-     *
-     * @return Boolean stating whether execution was successful.
      */
     void begin();
 
     /**
      * Ends the recording and stops recording commands when the record command
      * is sent.
-     *
-     * @return Boolean stating whether execution was successful.
      */
     void end();