(trunk libT) remove dead code noticed by geirha

libtransmission/fdlimit.c

@@ -477,21 +477,6 @@ tr_fdFileCheckout( int                      torrentId,
     return o->fd;
 }
 
-void
-tr_fdFileReturn( int fd )
-{
-    struct tr_openfile * o;
-    const struct tr_openfile * end;
-
-    for( o=gFd->openFiles, end=o+gFd->openFileLimit; o!=end; ++o )
-    {
-        if( o->fd != fd )
-            continue;
-        dbgmsg( "releasing file \"%s\"", o->filename );
-        break;
-    }
-}
-
 void
 tr_fdFileClose( const char * filename )
 {

libtransmission/fdlimit.h

@@ -53,9 +53,7 @@ int64_t tr_lseek( int fd, int64_t offset, int whence );
  *
  * A small pool of open files is kept to avoid the overhead of
  * continually opening and closing the same files when downloading
- * piece data.    It's also used to ensure only one caller can
- * write to the file at a time.  Callers check out a file, use it,
- * and then check it back in via tr_fdFileReturn() when done.
+ * piece data.
  *
  * - if `folder' doesn't exist, errno is set to ENOENT.
  * - if doWrite is true, subfolders in torrentFile are created if necessary.
@@ -64,7 +62,6 @@ int64_t tr_lseek( int fd, int64_t offset, int whence );
  * on success, a file descriptor >= 0 is returned.
  * on failure, a -1 is returned and errno is set.
  *
- * @see tr_fdFileReturn
  * @see tr_fdFileClose
  */
 int  tr_fdFileCheckout( int                      torrentId,
@@ -74,14 +71,6 @@ int  tr_fdFileCheckout( int                      torrentId,
                         tr_preallocation_mode    preallocationMode,
                         uint64_t                 desiredFileSize );
 
-/**
- * Returns an fd from tr_fdFileCheckout() so that other clients may borrow it.
- *
- * @see tr_fdFileCheckout
- * @see tr_fdFileClose
- */
-void tr_fdFileReturn( int file );
-
 /**
  * Closes a file that's being held by our file repository.
  *
@@ -89,7 +78,6 @@ void tr_fdFileReturn( int file );
  * If the file is currently checked out, it will be closed upon its return.
  *
  * @see tr_fdFileCheckout
- * @see tr_fdFileReturn
  */
 void     tr_fdFileClose( const char * filename );
 

libtransmission/inout.c

@@ -113,9 +113,6 @@ readOrWriteBytes( const tr_torrent * tor,
     if( ( !err ) && ( !fileExists ) && ( ioMode == TR_IO_WRITE ) )
         tr_statsFileCreated( tor->session );
 
-    if( fd >= 0 )
-        tr_fdFileReturn( fd );
-
     return err;
 }