move Read/Write() to common code, there was almost nothing platform-specific in it

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@57613 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/unix/private/sockunix.h

@@ -31,9 +31,6 @@ public:
 
     virtual wxSocketError GetLastError() const;
 
-    virtual int Read(void *buffer, int size);
-    virtual int Write(const void *buffer, int size);
-
     // wxFDIOHandler methods
     virtual void OnReadWaiting();
     virtual void OnWriteWaiting();
@@ -70,13 +67,6 @@ private:
     // really enable or disable socket input/output events
     void DoEnableEvents(bool enable);
 
-
-    int Recv_Stream(void *buffer, int size);
-    int Recv_Dgram(void *buffer, int size);
-    int Send_Stream(const void *buffer, int size);
-    int Send_Dgram(const void *buffer, int size);
-
-
 protected:
     // descriptors for input and output event notification channels associated
     // with the socket