Fix: Remove English part of description for Chinese townnames GRF

[LordAro]

To bring it under the length limit of 511, due to incoming better validation of text lengths (OpenTTD/bananas-api#80)

English part removed since the townnames are in Chinese, you're unlikely to want them unless you can read Chinese.

@zbx1425 's Chinese True Town Names

[TrueBrain]

Basically, despite the fact you could enter it in BaNaNaS, in-game it would never render that much text, and it would be cut-off in the middle somewhere. The validation is now a lot better, but does mean this package violates the length limit for description. This PR fixes that, but at the loss of some english text.

The original author can fix this again via BaNaNaS, in case our call was unjust :)

[zbx1425]

Never noticed the length limit in game before 😂
I'll replace it with a shorter Chinese description later...