Bug 1912724 - Revert "Bug 1906941 - Update kotlin jinja template import statement (#740)"

[badboy]

This reverts commit 55f5e77.

Pull Request checklist

• Quality: This PR builds and tests run cleanly
  • make test runs without emitting any warnings
  • make lint runs without emitting any errors
• Tests: This PR includes thorough tests or an explanation of why it does not
• Changelog: This PR includes a changelog entry to CHANGELOG.md or an explanation of why it does not need one
  • Any breaking changes to language binding APIs are noted explicitly

[badboy]

the HistogramMetricBase alias exists here in mozilla-release: https://searchfox.org/mozilla-release/rev/4f956737532738cd1a3bc1869140587e855e5c86/mobile/android/android-components/components/service/glean/src/main/java/mozilla/components/service/glean/private/MetricAliases.kt#20
And here in current Glean: https://github.com/mozilla/glean/blob/f83e6c3606d552ea87d2b3ae5d9040b01d20f99c/glean-core/android/src/main/java/mozilla/telemetry/glean/private/HistogramBase.kt#L26-L30

So Firefox 128/129 will continue to use the service-glean alias just fine.
Firefox 130+ has service-glean removed and will thus use the HistogramMetricBase alias from Glean directly.
In a followup we bring back the use of HistogramBase and remove the alias.