remove deprecated symbols

[jkowalleck]

part of #747

[codacy-production]

Coverage summary from Codacy

Merging #752 (284ffd5) into main (8c467ee) - See PR on Codacy

Coverage variation	Diff coverage
✅ +0.03% (target: -1.00%)	✅ 100.00% (target: 90.00%)

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (8c467ee)	6728	6611	98.26%
Head commit (284ffd5)	6609 (-119)	6496 (-115)	98.29% (+0.03%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#752)	1	1	100.00%

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

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