cleanup changelog

Author: dbu

CHANGELOG.md

@@ -6,13 +6,8 @@
 
 * DateTimeOptions now features a list of deserialization formats instead of a single string one. Passing a string instead of an array to its `__construct`or is deprecated, and will be forbidden in the next version
   Similarly, `getDeserializeFormat(): ?string` is deprecated in favor of `getDeserializeFormats(): ?array`
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 * Added `PropertyTypeIterable`, which generalizes `PropertyTypeArray` to allow merging Collection informations like one would with arrays, including between interfaces and concrete classes
 * Deprecated `PropertyTypeArray`, please prefer using `PropertyTypeIterable` instead
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-# 1.2.0 (unreleased)
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 * Added a model parser `VisibilityAwarePropertyAccessGuesser` that tries to guess getter and setter methods for non-public properties.
 
 # 1.1.0