Schedule removal of the legacy i2c device driver binding model

The legacy i2c device driver binding model is superseded by the
standard model, so it's time to deprecate it and schedule it for
removal.
Signed-off-by: Jean Delvare <khali@linux-fr.org>

Documentation/feature-removal-schedule.txt

@@ -359,3 +359,11 @@ Why:  The 2.6 kernel supports direct writing to ide CD drives, which
       eliminates the need for ide-scsi. The new method is more
       efficient in every way.
 Who:  FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
+
+---------------------------
+
+What:	i2c_attach_client(), i2c_detach_client(), i2c_driver->detach_client()
+When:	2.6.29 (ideally) or 2.6.30 (more likely)
+Why:	Deprecated by the new (standard) device driver binding model. Use
+	i2c_driver->probe() and ->remove() instead.
+Who:	Jean Delvare <khali@linux-fr.org>