Revert "add tests for adjust_block_size()"
Revert "add tests for adjust_block_size()"

This reverts commit dbae45a58d4e800f9449e5c09303b57799112e20.

openSUSE/libstorage-bgl-eval,aschnell/libstorage-bgl-eval,openSUSE/libstorage-bgl-eval,aschnell/libstorage-bgl-eval,aschnell/libstorage-bgl-eval,openSUSE/libstorage-bgl-eval,openSUSE/libstorage-bgl-eval,openSUSE/libstorage-bgl-eval,aschnell/libstorage-bgl-eval,aschnell/libstorage-bgl-eval