common: Drop the dpram_... functions

These declarations are not used anymore, so drop them.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
diff --git a/include/common.h b/include/common.h
index d337f68..df58916 100644
--- a/include/common.h
+++ b/include/common.h
@@ -379,11 +379,6 @@
 int	disable_interrupts (void);
 
 /* $(CPU)/.../commproc.c */
-int	dpram_init (void);
-uint	dpram_base(void);
-uint	dpram_base_align(uint align);
-uint	dpram_alloc(uint size);
-uint	dpram_alloc_align(uint size,uint align);
 void	bootcount_store (ulong);
 ulong	bootcount_load (void);