ppc4xx: Undo Sequoia patch for dynamic EBC speed support of 83MHz

This patch undoes the patch by Jeff Mann with commit-id ada4697d. As
suggested by AMCC it is not recommended to dynamically change the EBC
speed after bootup. So we undo this change to be on the safe side.

Signed-off-by: Stefan Roese <sr@denx.de>

board/amcc/sequoia/sequoia.c

@@ -132,12 +132,6 @@ int board_early_init_f(void)
 		(0x80000000 >> (28 + CFG_NAND_CS));
 	mtsdr(SDR0_CUST0, sdr0_cust0);
 
-	/* Update EBC speed after booting from i2c bootstrap settings
-	 * on newer boards with 33.333 MHZ Clocks
-	 */
-	if (in8(CFG_BCSR_BASE + 3) & 0x80)
-		mtcpr(0xe0, 0x02000000);
-
 	return 0;
 }