Update the trigger templates with GA version

[MaddyDev]

Update the trigger templates to point to GA version and remove the documentation and comments wherever applicable to use GA version.

[VasuBhog]

@MaddyDev is this done? I see that you merged in a PR already for SQL trigger templates.

[chlafreniere]

I believe this task is tracking the GA version of trigger templates (3.x non-preview)

[VasuBhog]

Ah went to the merged PR and thought that was for this but it makes sense. Ignore my comment @MaddyDev :)