docs: remove deprecation notice in reporters (#9451)

Author: sheremet-va

docs/api/advanced/reporters.md

@@ -118,10 +118,6 @@ export default new MyReporter()
 ```
 :::
 
-::: tip DEPRECATION NOTICE
-This method was added in Vitest 3, replacing `onPathsCollected` and `onSpecsCollected`, both of which are now deprecated.
-:::
-
 ## onTestRunEnd
 
 ```ts
@@ -185,10 +181,6 @@ export default new MyReporter()
 ```
 :::
 
-::: tip DEPRECATION NOTICE
-This method was added in Vitest 3, replacing `onFinished`, which is now deprecated.
-:::
-
 ## onCoverage
 
 ```ts