mtd: rawnand: remove STANDALONE compile mode of nand_ecc

This file can not be built independently any more.  We would have to
bring in more to resolve mtd_to_nand(mtd)->ecc.size, for example.

It is difficult to notice a breakage since nobody compiles this mode.
It is not worth fixing or maintaining in my opinion.  Remove.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>

drivers/mtd/nand/raw/nand_ecc.c

@@ -28,15 +28,6 @@
  *
  */
 
-/*
- * The STANDALONE macro is useful when running the code outside the kernel
- * e.g. when running the code in a testbed or a benchmark program.
- * When STANDALONE is used, the module related macros are commented out
- * as well as the linux include files.
- * Instead a private definition of mtd_info is given to satisfy the compiler
- * (the code does not use mtd_info, so the code does not care)
- */
-#ifndef STANDALONE
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
@@ -44,17 +35,6 @@
 #include <linux/mtd/rawnand.h>
 #include <linux/mtd/nand_ecc.h>
 #include <asm/byteorder.h>
-#else
-#include <stdint.h>
-struct mtd_info;
-#define EXPORT_SYMBOL(x)  /* x */
-
-#define MODULE_LICENSE(x)	/* x */
-#define MODULE_AUTHOR(x)	/* x */
-#define MODULE_DESCRIPTION(x)	/* x */
-
-#define pr_err printf
-#endif
 
 /*
  * invparity is a 256 byte table that contains the odd parity