remove rogue clara jar #2606

Job	Run time
build (ubuntu-latest)	3m 7s
download_test_data	5s
build (macos-latest)	3m 22s
java_matrix	4s
unit_tests (25)	3m 16s
unit_tests (21)	3m 46s
spotbugs	6m 55s
test_coatjava (ubuntu-latest, eb-ep)	1m 49s
test_decoder	2m 21s
test_coatjava (ubuntu-latest, eb-enc)	1m 31s
test_coatjava (macos-latest, eb-ep, ./run-eb-tests.sh -100 electronproton)	1m 45s
test_clara	4m 17s
test_run-groovy	1m 33s
test_coatjava (ubuntu-latest, eb-eftpi)	1m 37s
test_coatjava (ubuntu-latest, eb-epc)	1m 54s
test_coatjava (ubuntu-latest, eb-eg)	1m 49s
test_coatjava (ubuntu-latest, kpp)	1m 56s
release_build	0s
generate_documentation	1m 10s
deploy_web_pages	-1s
final	0s
	42m 16s

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