Remove obsolete fat_cvf help text

The text removed by the following patch refers to functionality that never worked, to non-existing documentation file, and to mount options marked as obsolete in the module.

@@ -731,10 +731,6 @@

file system and use GNU tar's M option. GNU tar is a program available for Unix and DOS ("man tar" or "info tar").

-	  It is now also becoming possible to read and write compressed FAT
-	  file systems; read <file:Documentation/filesystems/fat_cvf.txt> for
-	  details.

-
The FAT support will enlarge your kernel by about 37 KB. If unsure, say Y.

Alexander E. Patrakov