ide: delete filenames/versions from comments

Delete filenames/versions from comments.

I'm leaving decisions about adding DRV_VERSION defines and MODULE_VERSION()-s
to maintainers of the respective drivers.

While at it:

* Remove unused VERSION define from ide.c.

* Remove unused/stale DRV_VERSION define from au1xxx-ide.c.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c
index f6a374a..23112ef 100644
--- a/drivers/ide/ppc/pmac.c
+++ b/drivers/ide/ppc/pmac.c
@@ -1,7 +1,6 @@
 /*
- * linux/drivers/ide/ppc/pmac.c
- *
  * Support for IDE interfaces on PowerMacs.
+ *
  * These IDE interfaces are memory-mapped and have a DBDMA channel
  * for doing DMA.
  *