Documentation: Remove references to dead "eda" and "edb" kernel parms

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>

Documentation/kernel-parameters.txt

@@ -598,10 +598,6 @@ and is between 256 and 4096 characters. It is defined in the file
 			0: polling mode
 			non-0: interrupt mode (default)
 
-	eda=		[HW,PS2]
-
-	edb=		[HW,PS2]
-
 	edd=		[EDD]
 			Format: {"of[f]" | "sk[ipmbr]"}
 			See comment in arch/i386/boot/edd.S