In commit 
9c0ece069b32 ("Get rid of Documentation/feature-removal.txt"),
Linus removed feature-removal-schedule.txt from Documentation, but there
is still some reference to this file.  So remove them.
Signed-off-by: Tao Ma <boyu.mt@taobao.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
        ---help---
          This enables support for FullMAC PCI/Cardbus prism54 devices. This
          driver is now deprecated in favor for the SoftMAC driver, p54pci.
-         p54pci supports FullMAC PCI/Cardbus devices as well. For details on
-         the scheduled removal of this driver on the kernel see the feature
-         removal schedule:
-
-         Documentation/feature-removal-schedule.txt
+         p54pci supports FullMAC PCI/Cardbus devices as well.
 
          For more information refer to the p54 wiki: