Deleted unnecessary explanations
Deleted unnecessary explanations

As a result of replacing 'Dotty' with 'Scala 3' in the following commit,
the explanation 'which is scheduled to become Scala 3' is no longer needed.

https://github.com/lampepfl/dotty/commit/ccb76da991bfbb882e1e91e5c6051d91ed4b86f3

sjrd/dotty,lampepfl/dotty,lampepfl/dotty,dotty-staging/dotty,sjrd/dotty,sjrd/dotty,dotty-staging/dotty,dotty-staging/dotty,sjrd/dotty,dotty-staging/dotty,lampepfl/dotty,lampepfl/dotty,dotty-staging/dotty,lampepfl/dotty,sjrd/dotty