[MTD] Remove read/write _ecc variants

MTD clients are agnostic of FLASH which needs ECC suppport.
Remove the functions and fixup the callers.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index 6931376..8362b46 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -36,6 +36,9 @@
 			  size_t len, size_t ooblen);
 
 
+extern int nand_write_raw(struct mtd_info *mtd, loff_t to, size_t len,
+			  size_t *retlen, uint8_t *buf, uint8_t *oob);
+
 /* The maximum number of NAND chips in an array */
 #define NAND_MAX_CHIPS		8