tidy up

packages/svelte/src/constants.js

@@ -20,10 +20,9 @@ export const TEMPLATE_FRAGMENT = 1;
 export const TEMPLATE_USE_IMPORT_NODE = 1 << 1;
 
 export const HYDRATION_START = '[';
-export const HYDRATION_START_ELSE = '[!';
+export const HYDRATION_START_ELSE = '[!'; // used to indicate that an `{:else}...` block was rendered
 export const HYDRATION_END = ']';
 export const HYDRATION_ANCHOR = '';
-export const HYDRATION_END_ELSE = `${HYDRATION_END}!`; // used to indicate that an `{:else}...` block was rendered
 export const HYDRATION_ERROR = {};
 
 export const ELEMENT_IS_NAMESPACED = 1;