remove unused EFFECT_HAS_DERIVED

Author: Rich-Harris

packages/svelte/src/internal/client/constants.js

@@ -19,9 +19,8 @@ export const EFFECT_TRANSPARENT = 1 << 17;
 export const LEGACY_DERIVED_PROP = 1 << 18;
 export const INSPECT_EFFECT = 1 << 19;
 export const HEAD_EFFECT = 1 << 20;
-export const EFFECT_HAS_DERIVED = 1 << 21;
-export const EFFECT_IS_UPDATING = 1 << 22;
-export const EFFECT_PRESERVED = 1 << 23; // effects with this flag should not be pruned
+export const EFFECT_IS_UPDATING = 1 << 21;
+export const EFFECT_PRESERVED = 1 << 22; // effects with this flag should not be pruned
 
 // Flags used for async
 export const REACTION_IS_UPDATING = 1 << 24;