Remove using NetworkSteam.DataAvailable

Author: cnblogs-dudu

Enyim.Caching/Memcached/PooledSocket.cs

@@ -292,7 +292,7 @@ public async Task ReadAsync(byte[] buffer, int offset, int count)
                 try
                 {
                     int currentRead = await _inputStream.ReadAsync(buffer, offset, shouldRead);
-                    if (currentRead == count || !_inputStream.DataAvailable)
+                    if (currentRead == count || currentRead < 1)
                         break;
 
                     read += currentRead;
@@ -330,7 +330,7 @@ public void Read(byte[] buffer, int offset, int count)
                 try
                 {
                     int currentRead = _inputStream.Read(buffer, offset, shouldRead);
-                    if (currentRead == count || !_inputStream.DataAvailable)
+                    if (currentRead == count || currentRead < 1)
                         break;
 
                     read += currentRead;