[en] LT from the command line: don't give useless message [enhancement request]

[MikeUnwalla]

Hello,

On Windows, when I start LT from the command line, I get this message:

java -Xmx700m -jar languagetool.jar
WARN  o.l.l.i.DefaultLanguageIdentifier fastText not configured - language detection performance will be degraded. See https://dev.languagetool.org/http-server#starting-from-command-line for instructions.

https://dev.languagetool.org/http-server#starting-from-command-line tells me "... recommended on Linux and Mac for good language detection - on Windows, fastText is not available".

Because fastext is not available on Windows, the message is not necessary.

Aside: I cannot add labels to the issue. Thus, I put a label in the title. (I first noticed this change in behaviour a few months ago. @danielnaber, is this change related to the change you made for write access to Github?)