`load_all_models`を廃止する #1988

Job	Run time
actionlint	33s
rust-lint	2m 40s
rust-unit-test	8m 10s
shellcheck	23s
validate-cargo-lock	37s
build-and-test-java-api (windows-latest)	11m 33s
build-and-test-java-api (macos-latest)	10m 26s
build-and-test-java-api (ubuntu-latest)	4m 2s
build-and-test-python-api (windows-latest)	12m 49s
build-and-test-python-api (macos-latest)	12m 15s
build-and-test-python-api (ubuntu-latest)	4m 13s
build-unix-cpp-example (macos-latest, osx-x64-cpu-cpp-shared)	3m 51s
build-unix-cpp-example (ubuntu-latest, linux-x64-cpu-cpp-shared)	2m 29s
build-windows-cpp-example	9m 1s
c-header	1m 35s
rust-integration-test-strategy-matrix	7s
rust-integration-test (windows-2019, directml)	4m 16s
rust-integration-test (macos-11)	3m 45s
rust-integration-test (ubuntu-20.04)	1m 50s
	1h 34m 35s

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