ide: mark "idebus=" kernel parameter as obsoleted (take 2)

We have "vlb|pci_clock=" parameters now.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/pci/cy82c693.c b/drivers/ide/pci/cy82c693.c
index 8ef551a..77cc22c 100644
--- a/drivers/ide/pci/cy82c693.c
+++ b/drivers/ide/pci/cy82c693.c
@@ -18,8 +18,6 @@
  *   hdparm -t reports 8.17 MB/sec at about 6% CPU usage for the DTTA
  * - this is my first linux driver, so there's probably a lot  of room
  *   for optimizations and bug fixing, so feel free to do it.
- * - use idebus=xx parameter to set PCI bus speed - needed to calc
- *   timings for PIO modes (default will be 40)
  * - if using PIO mode it's a good idea to set the PIO mode and
  *   32-bit I/O support (if possible), e.g. hdparm -p2 -c1 /dev/hda
  * - I had some problems with my IBM DHEA with PIO modes < 2
diff --git a/drivers/ide/pci/opti621.c b/drivers/ide/pci/opti621.c
index f766be9..684160d 100644
--- a/drivers/ide/pci/opti621.c
+++ b/drivers/ide/pci/opti621.c
@@ -53,8 +53,7 @@
  * If you then set the second drive to another PIO, the old value
  * (automatically selected) will be overrided by yours.
  * There is a 25/33MHz switch in configuration
- * register, but driver is written for use at any frequency which get
- * (use idebus=xx to select PCI bus speed).
+ * register, but driver is written for use at any frequency.
  *
  * Version 0.1, Nov 8, 1996
  * by Jaromir Koutek, for 2.1.8.