changelog: Remove second entry about tender.datePublished, which is n…

…ew in 1.2

docs/history/changelog.md

@@ -237,7 +237,6 @@ Per the [normative and non-normative content and changes policy](../governance/n
   * [#1618](https://github.com/open-contracting/standard/pull/1618) `tender.enquiryPeriod`, to remove the suggestion to use `tender.submissionMethodDetails` for information about how to submit enquiries.
   * [#1645](https://github.com/open-contracting/standard/pull/1645) `relatedProcesses`, to use consistent wording in the description of multi-stage procedures.
   * [#1618](https://github.com/open-contracting/standard/pull/1618) Normalize field descriptions according to a style guide.
-  * [#1648](https://github.com/open-contracting/standard/pull/1648) `tender.datePublished`, to clarify its relation to procurement documents.
   * [#1656](https://github.com/open-contracting/standard/pull/1656) `Award.value` and `Contract.value`, to clarify with respect to changes in contract values.
   * [#1509](https://github.com/open-contracting/standard/pull/1509) `planning`, `Planning`, `tender` and `Tender` to clarify relationships with the availability of documents.
   * [#1663](https://github.com/open-contracting/standard/pull/1663) `tender.amendments`, `awards.amendments`, `contracts.amendments` to avoid restating field titles.