doc: fix broken references

There are numerous broken references to Documentation files (in other
Documentation files, in comments, etc.). These broken references are
caused by typo's in the references, and by renames or removals of the
Documentation files. Some broken references are simply odd.

Fix these broken references, sometimes by dropping the irrelevant text
they were part of.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/Documentation/rfkill.txt b/Documentation/rfkill.txt
index 83668e5..03c9d92 100644
--- a/Documentation/rfkill.txt
+++ b/Documentation/rfkill.txt
@@ -117,5 +117,4 @@
 "type" sysfs files explained above.
 
 
-For further details consult Documentation/ABI/stable/dev-rfkill and
-Documentation/ABI/stable/sysfs-class-rfkill.
+For further details consult Documentation/ABI/stable/sysfs-class-rfkill.