ar71xx: Remove mtd cfi_cmdset_0002 status check patch

Currently the patch only changes break to use goto statement instead.
But not necessary acutually since the ret value checked after the for loop.
So it is okay for the break case before changed by the patch also.

This patch only reverts the following commit partially.
  https://github.com/openwrt/openwrt/commit/ddc11c3932c7b7b7df7d5fbd48f207e77619eaa7
    Note: The changes are mainly applied into the linux kernel upstream.

Signed-off-by: Tokunori Ikegami <[email protected]>
Cc: Koen Vandeputte <[email protected]>

target/linux/ar71xx/patches-4.14/403-mtd_fix_cfi_cmdset_0002_status_check.patch

@@ -1,62 +0,0 @@
---- a/drivers/mtd/chips/cfi_cmdset_0002.c
-+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
-@@ -1641,7 +1641,7 @@ static int __xipram do_write_oneword(str
- 		}
- 
- 		if (chip_good(map, adr, datum))
--			break;
-+			goto enable_xip;
- 
- 		/* Latency issues. Drop the lock, wait a while and retry */
- 		UDELAY(map, chip, adr, 1);
-@@ -1658,6 +1658,8 @@ static int __xipram do_write_oneword(str
- 			goto retry;
- 		}
- 	}
-+
-+ enable_xip:
- 	xip_enable(map, chip, adr);
-  op_done:
- 	if (mode == FL_OTP_WRITE)
-@@ -2236,7 +2238,6 @@ static int cfi_amdstd_panic_write(struct
- 	return 0;
- }
- 
--
- /*
-  * Handle devices with one erase region, that only implement
-  * the chip erase command.
-@@ -2304,7 +2305,7 @@ static int __xipram do_erase_chip(struct
- 		}
- 
- 		if (chip_good(map, adr, map_word_ff(map)))
--			break;
-+			goto op_done;
- 
- 		if (time_after(jiffies, timeo)) {
- 			printk(KERN_WARNING "MTD %s(): software timeout\n",
-@@ -2328,6 +2329,7 @@ static int __xipram do_erase_chip(struct
- 		}
- 	}
- 
-+ op_done:
- 	chip->state = FL_READY;
- 	xip_enable(map, chip, adr);
- 	DISABLE_VPP(map);
-@@ -2401,7 +2403,7 @@ static int __xipram do_erase_oneblock(st
- 
- 		if (chip_good(map, adr, map_word_ff(map))) {
- 			xip_enable(map, chip, adr);
--			break;
-+			goto op_done;
- 		}
- 
- 		if (time_after(jiffies, timeo)) {
-@@ -2427,6 +2429,7 @@ static int __xipram do_erase_oneblock(st
- 		}
- 	}
- 
-+ op_done:
- 	chip->state = FL_READY;
- 	DISABLE_VPP(map);
- 	put_chip(map, chip, adr);