Remove file name from file headers.

It provides no useful information and breaks on renames.

Originally committed as revision 17097 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/bfin/config_bfin.h

 /*
- * config_bfin.h
- *
  * Copyright (C) 2007 Marc Hoffman <marc.hoffman@analog.com>
  *
  * This file is part of FFmpeg.

libavcodec/bfin/mathops.h

 /*
- * mathops.h
+ * simple math operations
  *
  * Copyright (C) 2007 Marc Hoffman <mmhoffm@gmail.com>
  *

libavcodec/sparc/dsputil_vis.c

 /*
- * dsputil_vis.c
  * Copyright (C) 2003 David S. Miller <davem@redhat.com>
  *
  * This file is part of FFmpeg.

libavcodec/sparc/vis.h

 /*
- * vis.h
  * Copyright (C) 2003 David S. Miller <davem@redhat.com>
  *
  * This file is part of FFmpeg.

libavdevice/dv1394.h

 /*
- * dv1394.h - DV input/output over IEEE 1394 on OHCI chips
+ * DV input/output over IEEE 1394 on OHCI chips
  *   Copyright (C)2001 Daniel Maas <dmaas@dcine.com>
  *     receive, proc_fs by Dan Dennedy <dan@dennedy.org>
  *