Merge bitcoin/bitcoin#23094: doc: Remove outdated comments

ee7891a doc: Remove outdated comments (Hennadii Stepanov)

Pull request description:

  The first removed comment was introduced in #5288, the second one in #13503.

  Both are outdated since #14336.

ACKs for top commit:
  duncandean:
    crACK ee7891a

Tree-SHA512: a2d6071919e81c916bfc2178109bbc464417321bcc567ed0644448c5faea8e58cb08a7657afa1b6ffe1fb63e114a2a47b31c893e471839ba9d49a3986e68b2a7

Author: laanwj

src/init.cpp

@@ -871,8 +871,6 @@ bool AppInitParameterInteraction(const ArgsManager& args)
     nUserMaxConnections = args.GetArg("-maxconnections", DEFAULT_MAX_PEER_CONNECTIONS);
     nMaxConnections = std::max(nUserMaxConnections, 0);
 
-    // Trim requested connection counts, to fit into system limitations
-    // <int> in std::min<int>(...) to work around FreeBSD compilation issue described in #2695
     nFD = RaiseFileDescriptorLimit(nMaxConnections + MIN_CORE_FILEDESCRIPTORS + MAX_ADDNODE_CONNECTIONS + nBind + NUM_FDS_MESSAGE_CAPTURE);
 
 #ifdef USE_POLL