This looks like it came from commit,

```
commit 4d31f0d41f6c7df7f46814c4f5e5ef9d182c0f40
Author: snelson <snelson@2b7e53f0-3cfb-0310-b3e9-8179ed1497e1>
Date: Tue Jan 19 03:23:07 2010 +0000

    Convert chips to block_erasers:
    ST_M25PE10
    ST_M25PE20
    ST_M25PE40
    ST_M25PE80
    ST_M25PE16
    PMC_25LV010
    PMC_25LV016B
    PMC_25LV020
    PMC_25LV040
    PMC_25LV080B
    PMC_25LV512
    PMC_39F010
    PMC_49FL002
    PMC_49FL004
    SANYO_LE25FW203A
    SPANSION_S25FL016A
    
    Added spi_block_erase_d7 for PMC chips.
    
    Signed-off-by: Sean Nelson <audiohacked@gmail.com>
    Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
    
    
    
    git-svn-id: svn://coreboot.org/flashrom/trunk@867 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
```

and already exists in upstream,
https://github.com/flashrom/flashrom/blob/master/flashchips.c#L15473

Therefore this is a duplicate chip in the ChromiumOS fork of Flashrom and should be removed.

Patch set 2:Code-Review -2

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