LibCore: Remove CSocket's bind() and listen().

We're going to be using dedicated server socket classes instead.
This was only implemented for CLocalSocket, and clients have been switched
over to using CLocalServer.

Libraries/LibCore/CLocalSocket.cpp

@@ -26,11 +26,3 @@ CLocalSocket::CLocalSocket(CObject* parent)
 CLocalSocket::~CLocalSocket()
 {
 }
-
-bool CLocalSocket::bind(const CSocketAddress& address)
-{
-    auto un = address.to_sockaddr_un();
-    int rc = ::bind(fd(), (const sockaddr*)&un, sizeof(un));
-    set_error(errno);
-    return rc == 0;
-}

Libraries/LibCore/CLocalSocket.h

@@ -11,6 +11,4 @@ public:
     explicit CLocalSocket(CObject* parent = nullptr);
     CLocalSocket(Badge<CLocalServer>, int fd, CObject* parent = nullptr);
     virtual ~CLocalSocket() override;
-
-    virtual bool bind(const CSocketAddress&) override;
 };

Libraries/LibCore/CSocket.cpp

@@ -131,13 +131,6 @@ bool CSocket::send(const ByteBuffer& data)
     return true;
 }
 
-bool CSocket::listen()
-{
-    int rc = ::listen(fd(), 5);
-    set_error(errno);
-    return rc == 0;
-}
-
 void CSocket::did_update_fd(int fd)
 {
     if (fd < 0) {

Libraries/LibCore/CSocket.h

@@ -22,10 +22,6 @@ public:
     bool connect(const CSocketAddress&, int port);
     bool connect(const CSocketAddress&);
 
-    virtual bool bind(const CSocketAddress&) = 0;
-
-    bool listen();
-
     ByteBuffer receive(int max_size);
     bool send(const ByteBuffer&);
 

Libraries/LibCore/CTCPSocket.cpp

@@ -17,8 +17,3 @@ CTCPSocket::CTCPSocket(CObject* parent)
 CTCPSocket::~CTCPSocket()
 {
 }
-
-bool CTCPSocket::bind(const CSocketAddress&)
-{
-    ASSERT_NOT_REACHED();
-}

Libraries/LibCore/CTCPSocket.h

@@ -5,6 +5,4 @@ class CTCPSocket final : public CSocket {
 public:
     explicit CTCPSocket(CObject* parent = nullptr);
     virtual ~CTCPSocket() override;
-
-    virtual bool bind(const CSocketAddress&) override;
 };