Remove changelog to asciidoc

changelogs/9.0.asciidoc

@@ -16,7 +16,6 @@ https://github.com/elastic/apm-server/compare/v\...v9.0.0[View commits]
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 ==== Breaking Changes
 - Change `sampling.tail.storage_limit` default to `0`. While `0` means unlimited local tail-sampling database size, it now enforces a max 80% disk usage on the disk where the data directory is located. Any tail sampling writes after this threshold will be rejected, similar to what happens when tail-sampling database size exceeds a non-0 storage limit. Setting `sampling.tail.storage_limit` to non-0 maintains the existing behavior which limits the tail-sampling database size to `sampling.tail.storage_limit` and does not have the new disk usage threshold check. {pull}15467[15467] {pull}15524[15524]
-- Change server information endpoint `/` to only accept GET and HEAD requests, otherwise return HTTP 405 Method Not Allowed.
 
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 ==== Deprecations

changelogs/all-breaking-changes.asciidoc

@@ -24,10 +24,6 @@ which limits the tail-sampling database size to `sampling.tail.storage_limit`
 and does not have the new disk usage threshold check.
 For more details, see https://github.com/elastic/apm-server/pull/15467[PR #15467] and
 https://github.com/elastic/apm-server/pull/15524[PR #15524]
-- Change server information endpoint `/` to only accept GET and HEAD requests.
-Any other methods will return HTTP 405 Method Not Allowed.
-This will surface any agent misconfiguration causing data to be sent to `/` instead of the correct endpoint,
-e.g. `/v1/traces` for OTLP/HTTP. [PR #15976]
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