THRIFT-4499: Remove Magic Number In TFIleTransport (#1607)

diff --git a/lib/java/src/org/apache/thrift/transport/TFileTransport.java b/lib/java/src/org/apache/thrift/transport/TFileTransport.java
index 915fa73..c011c52 100644
--- a/lib/java/src/org/apache/thrift/transport/TFileTransport.java
+++ b/lib/java/src/org/apache/thrift/transport/TFileTransport.java
@@ -366,7 +366,7 @@
       currentEvent_ = new Event(new byte [256]);
 
       if(!readOnly_)
-        outputStream_ = new BufferedOutputStream(inputFile_.getOutputStream(), 8192);
+        outputStream_ = new BufferedOutputStream(inputFile_.getOutputStream());
     } catch (IOException iox) {
       throw new TTransportException(TTransportException.NOT_OPEN, iox);
     }