Remove manual rate_limit control directive from templates

[bdraco]

If we want to remove this before 0.116 ships, the breaking changes section in #40667 should be updated as well as the docs. Also #41030 would need to be cherry-picked as well.

Proposed change

Remove manual rate_limit control directive from templates

Increase default rate limit for all states and entire
domain states to one minute

Ensure specifically referenced entities are excluded from
the rate limit

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[bdraco]

We haven't reached a decision on how to deal with time based template updates, and inline template directives may not be the path forward so it makes sense to remove the rate_limit() directive from the template engine in 0.116 until we can decide a path forward.