Remove Event.wrapper for suggestions telemetry

[mcarare]

Breakout from #21292.

┆Issue is synchronized with this Jira Task

[sflorean]

Verified as fixed on Nightly 4/ 21 with OnePlus 9 (Android 12).

        {
          "timestamp": 4717,
          "category": "awesomebar",
          "name": "history_suggestion_clicked"
        },
        {
          "timestamp": 12747,
          "category": "events",
          "name": "performed_search",
          "extra": {
            "source": "default.suggestion"
          }
        },
        {
          "timestamp": 12747,
          "category": "awesomebar",
          "name": "search_suggestion_clicked"
        },
        {
          "timestamp": 16298,
          "category": "events",
          "name": "search_bar_tapped",
          "extra": {
            "source": "BROWSER"
          }
        },
        {
          "timestamp": 25085,
          "category": "events",
          "name": "entered_url",
          "extra": {
            "autocomplete": "false"
          }
        },
        {
          "timestamp": 25085,
          "category": "synced_tabs",
          "name": "synced_tabs_suggestion_clicked"
        },
        {
          "timestamp": 33802,
          "category": "awesomebar",
          "name": "bookmark_suggestion_clicked"
        }