sparc: Stop setting NO_DMA.

This fixes the build with PCI disabled, we do want the
generic DMA facilities and interfaces even when just SBUS
is enabled.

Based upon a build failure report by Robert Reif.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index cb1dd35..abcd82b 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -235,9 +235,6 @@
 
 endif
 
-config NO_DMA
-	def_bool !PCI
-
 config SUN_OPENPROMFS
 	tristate "Openprom tree appears in /proc/openprom"
 	help