omap: am335x_evm: remove unused definitions

UART_RESET, UART_CLK_RUNNING_MASK, and UART_SMART_IDLE_EN
are defined inn evm.c but not used. Also removes unnecessary
include of serial.h

PHYS_DRAM_1_SIZE is defined in am335x_evm.h but never used.

Signed-off-by: Steve Sakoman <steve@sakoman.com>
diff --git a/board/ti/am335x/evm.c b/board/ti/am335x/evm.c
index 5e2d53a..f2e355c 100644
--- a/board/ti/am335x/evm.c
+++ b/board/ti/am335x/evm.c
@@ -17,15 +17,10 @@
 #include <asm/arch/cpu.h>
 #include <asm/arch/hardware.h>
 #include <asm/arch/common_def.h>
-#include <serial.h>
 #include <i2c.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
-#define UART_RESET		(0x1 << 1)
-#define UART_CLK_RUNNING_MASK	0x1
-#define UART_SMART_IDLE_EN	(0x1 << 0x3)
-
 /*
  * Basic board specific setup
  */
diff --git a/include/configs/am335x_evm.h b/include/configs/am335x_evm.h
index d0fbc88..89e2aa0 100644
--- a/include/configs/am335x_evm.h
+++ b/include/configs/am335x_evm.h
@@ -85,7 +85,6 @@
  /* Physical Memory Map */
 #define CONFIG_NR_DRAM_BANKS		1		/*  1 bank of DRAM */
 #define PHYS_DRAM_1			0x80000000	/* DRAM Bank #1 */
-#define PHYS_DRAM_1_SIZE		0x10000000 /*(0x80000000 / 8) 256 MB */
 #define CONFIG_MAX_RAM_BANK_SIZE	(1024 << 20)	/* 1GB */
 
 #define CONFIG_SYS_SDRAM_BASE		PHYS_DRAM_1