SE-133 YeastX integration tests: remove unused files

rtd_yeastx/sourceTest/bash/clean.sh

rtd_yeastx/sourceTest/bash/copy-clean-incoming.sh

.../sourceTest/bash/incoming/any-file-upload/description.tsv

rtd_yeastx/sourceTest/bash/incoming/any-file-upload/file.any

rtd_yeastx/sourceTest/bash/incoming/any-file-upload/file.mat

rtd_yeastx/sourceTest/bash/incoming/any-file-upload/file.pdf

rtd_yeastx/sourceTest/bash/incoming/any-file-upload/file.zip

...ceTest/bash/incoming/different-sample-mapping/file1.mzXML

...ceTest/bash/incoming/different-sample-mapping/file2.mzXML

...ceTest/bash/incoming/different-sample-mapping/file3.mzXML

...urceTest/bash/incoming/different-sample-mapping/index.tsv

...ceTest/bash/incoming/empty-dir-is-not-an-error/.gitignore

...ceTest/bash/incoming/faulty-duplicated-mapping/file.mzXML

...rceTest/bash/incoming/faulty-duplicated-mapping/index.tsv

...Test/bash/incoming/faulty-experiment-code/description.tsv

...urceTest/bash/incoming/faulty-experiment-code/file1.mzXML

...ncoming/faulty-mapped-file-does-not-exist/description.tsv

...rceTest/bash/incoming/faulty-no-email-specified/index.tsv

...ourceTest/bash/incoming/faulty-no-mapping/description.tsv

...tx/sourceTest/bash/incoming/faulty-no-mapping/file1.mzXML