v2: Drop Java library #960

Job	Run time
build-vegafusion-wasm	10m 8s
build-vegafusion-python-linux-arm64	14m 49s
build-vegafusion-python-linux-64	13m 47s
build-vegafusion-python-osx-64	16m 38s
build-vegafusion-python-osx-arm64	10m 51s
build-vegafusion-server-linux-64	11m 18s
build-vegafusion-python-win-64	27m 31s
check-rust	7m 2s
test-rust (ubuntu-20.04)	26m 38s
test-rust (windows-2022)	48m 40s
build-vegafusion-server-linux-arm64	14m 4s
test-rust (macos-14)	21m 50s
build-vegafusion-server-osx-64	19m 21s
build-vegafusion-server-osx-arm64	10m 33s
build-vegafusion-server-win-64	26m 43s
test-vegafusion-python-osx-arm64	6m 26s
test-vegafusion-python-linux-64	31m 41s
test-vegafusion-python-win-64	10m 29s
	5h 28m 29s

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