Remove LevelFilter

src/types.ts

@@ -12,15 +12,6 @@ export enum Level {
     ERROR = 4,
 }
 
-export enum LevelFilter {
-    DEBUG = 0,
-    TRACE = 1,
-    INFO = 2,
-    WARNING = 3,
-    ERROR = 4,
-    OFF = 6,
-}
-
 export type WriterOptions = {
     minLevel: Level,
     with_color: boolean,