Remove: old todo comment.

Author: ya7010

cmdcomp/config.py

@@ -19,7 +19,6 @@ class Config(RootModel):
 def load(file: BinaryIO) -> Config:
     _, extention = os.path.splitext(file.name)
     match extention:
-        # TODO: In v2, we will remove support for json.
         case ".json":
             data = json.load(file)