test: remove unused tag #21

Job	Run time
Build Wasm	1m 35s
Build Web UI / Build Treemap WebUI	35s
Tests (ubuntu-latest, unit)	1m 14s
Tests (ubuntu-latest, integration-example)	2m 38s
Tests (ubuntu-latest, integration-real)	3m 44s
Tests (windows-latest, unit)	2m 13s
Tests (windows-latest, integration-example)	4m 49s
Tests (windows-latest, integration-real)	8m 7s
Tests (macos-13, unit)	1m 28s
Tests (macos-13, integration-example)	4m 50s
Tests (macos-13, integration-real)	6m 27s
Tests (macos-14, unit)	1m 12s
Tests (macos-14, integration-example)	2m 49s
Tests (macos-14, integration-real)	3m 47s
Tests on UI	43s
Build go-size-analyzer explorer	0s
Deploy explorer to GitHub Pages	0s
Merge Go test results	0s
	46m 11s

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