This PR seeks to remove a strange prefix found in the french wordlist.
This can be confirmed with hexdump -C -n 8 bip-0039/french.txt.
00000000 ef bb bf 61 62 61 69 73 |...abais|
The first 8 bytes should be the word abaisser.
00000000 61 62 61 69 73 73 65 72 |abaisser|