file: fix useless var warnings

Signed-off-by: Alexandre Terrasa <alexandre@moz-code.org>

diff --git a/lib/standard/file.nit b/lib/standard/file.nit
index d5c1fd1..60f5f69 100644 (file)
--- a/lib/standard/file.nit
+++ b/lib/standard/file.nit
@@ -65,7 +65,7 @@ class IFStream
 
        redef fun close
        do
-               var i = _file.io_close
+               _file.io_close
                _buffer.clear
                end_reached = true
        end
@@ -114,7 +114,7 @@ class OFStream
 
        redef fun close
        do
-               var i = _file.io_close
+               _file.io_close
                _is_writable = false
        end