Remove usable from inline and internal properties #26

Job	Run time
Soundness / API breakage check	45s
Soundness / Broken symlinks check	2s
Soundness / Documentation check	56s
Soundness / Format check	31s
Soundness / License headers check	4s
Soundness / Python lint check	6s
Soundness / Shell check	34s
Soundness / Unacceptable language check	7s
Soundness / YAML lint check	4s
Benchmarks / Benchmarks / Linux (5.9)	2m 24s
Benchmarks / Benchmarks / Linux (5.10)	2m 17s
Benchmarks / Benchmarks / Windows (6.0)	3s
Benchmarks / Benchmarks / Linux (6.0)	2m 32s
Benchmarks / Benchmarks / Linux (nightly-6.0)	2m 40s
Benchmarks / Benchmarks / Linux (nightly-main)	2m 41s
Benchmarks / Benchmarks / Windows (nightly-6.0)	1s
Cxx interop / Cxx interop / Linux (5.9)	38s
Benchmarks / Benchmarks / Windows (nightly-main)	3s
Cxx interop / Cxx interop / Windows (6.0)	1s
Cxx interop / Cxx interop / Linux (5.10)	44s
Cxx interop / Cxx interop / Linux (6.0)	50s
Cxx interop / Cxx interop / Windows (nightly-6.0)	2s
Cxx interop / Cxx interop / Linux (nightly-6.0)	56s
Cxx interop / Cxx interop / Windows (nightly-main)	2s
Cxx interop / Cxx interop / Linux (nightly-main)	59s
Unit tests / Unit tests / Linux (5.9)	44s
Unit tests / Unit tests / Windows (6.0)	8m 43s
Unit tests / Unit tests / Linux (5.10)	51s
Unit tests / Unit tests / Windows (nightly-6.0)	12m 32s
Unit tests / Unit tests / Linux (6.0)	49s
Unit tests / Unit tests / Windows (nightly-main)	16m 5s
Unit tests / Unit tests / Linux (nightly-6.0)	54s
Unit tests / Unit tests / Linux (nightly-main)	57s
	1h 1m 37s

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