Alpha Miata: remove dead URL

Remove a dead URL.

Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/alpha/Kconfig

@@ -222,8 +222,7 @@ config ALPHA_MIATA
 	bool "Miata"
 	help
 	  The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a,
-	  or 600au).  There is an Installation HOWTO for this hardware at
-	  <http://eijk.homelinux.org/~stefan/miata.html>.
+	  or 600au).
 
 config ALPHA_MIKASA
 	bool "Mikasa"