io.c: remove redundant assignment

* io.c (rb_io_sysread): Remove redundan assignment of 'n'.
  [Fix GH-767]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48538 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 0 insertions, 2 deletions

diff --git a/io.c b/io.c
index 0d75ee5013..228a2e8129 100644
--- a/io.c
+++ b/io.c
@@ -4724,8 +4724,6 @@ rb_io_sysread(int argc, VALUE *argv, VALUE io)
 	rb_raise(rb_eIOError, "sysread for buffered IO");
     }
 
-    n = fptr->fd;
-
     /*
      * FIXME: removing rb_thread_wait_fd() here changes sysread semantics
      * on non-blocking IOs.  However, it's still currently possible