sparc: Remove non-generic board init files: board.c, time.c

Remove the board.c and time.c files and all associated non-generic board
initialization code.

Signed-off-by: Francois Retief <fgretief@spaceteq.co.za>
diff --git a/arch/sparc/lib/Makefile b/arch/sparc/lib/Makefile
index 6bddd4c..6b7ad6d 100644
--- a/arch/sparc/lib/Makefile
+++ b/arch/sparc/lib/Makefile
@@ -5,9 +5,5 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-obj-y = cache.o interrupts.o time.o
+obj-y = cache.o interrupts.o
 obj-$(CONFIG_CMD_BOOTM) += bootm.o
-
-ifndef CONFIG_SYS_GENERIC_BOARD
-obj-y += board.o
-endif