alpha: remove the unused ALPHA_CORE_AGP option

The real option is named AGP_ALPHA_CORE.
Reviewed-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/alpha/Kconfig

@@ -333,11 +333,6 @@ config PCI_SYSCALL
 config IOMMU_HELPER
 	def_bool PCI
 
-config ALPHA_CORE_AGP
-	bool
-	depends on ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL
-	default y
-
 config ALPHA_NONAME
 	bool
 	depends on ALPHA_BOOK1 || ALPHA_NONAME_CH