[net processing] Fixup TryLowWorkHeadersSync comment

Author: dergoegge

src/net_processing.cpp

@@ -638,9 +638,8 @@ class PeerManagerImpl final : public PeerManager
      * @param[in]   chain_start_header  Where these headers connect in our index.
      * @param[in,out]   headers             The headers to be processed.
      *
-     * @return      True if chain was low work and a headers sync was
-     *              initiated (and headers will be empty after calling); false
-     *              otherwise.
+     * @return      True if chain was low work (headers will be empty after
+     *              calling); false otherwise.
      */
     bool TryLowWorkHeadersSync(Peer& peer, CNode& pfrom,
                                   const CBlockIndex* chain_start_header,