Changelog: remove code-unrelated/inherited features #52

Job	Run time
Coding standard (ubuntu-latest, 8.1)	18s
Static analysis (ubuntu-latest, 8.1)	32s
Tests (ubuntu-latest, 7.4, false)	26s
Test for mutants (ubuntu-latest, 8.1)	49m 52s
Tests (ubuntu-latest, 8.0, false)	24s
Tests (ubuntu-latest, 8.1, false)	27s
Tests (macos-latest, 7.4, false)	1m 14s
Tests (macos-latest, 8.0, false)	1m 10s
Tests (macos-latest, 8.1, false)	1m 19s
Tests (windows-latest, 7.4, false)	59s
Tests (windows-latest, 8.0, false)	1m 1s
Tests (windows-latest, 8.1, false)	59s
Tests (ubuntu-latest, 7.4, --prefer-lowest --prefer-stable, false)	23s
Tests (ubuntu-latest, 8.2, --ignore-platform-req=php+, false)	25s
Code coverage finish (ubuntu-latest, 8.1)	2s
Status check - CI	2s
	59m 33s

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