Skip dependency check in scripts

[nylander]

The acetoscan script does a dependency check (lines 404--412):

### Checking dependencies

    echo -e "\n#\t${YELLOW}Performing dependencies check${RESTORE}"
    export PATH="/home/${user}/acetoscan/bin/:${PATH}"
    export PATH="/home/${user}/acetoscan/scripts/:${PATH}"

    # running check

    AcetoScan_software_check.sh # <= External script

1. This check is done well after some output folders (and files) are created. That is, if the test fails, the user is left with a bunch of empty folders.
2. The test also requires that the external script AcetoScan_software_check.sh is reachable from a hard coded path - which should be avoided (see issue Avoid creating folders in the install scripts #98)
3. The export commands is basically an installation, and should be taken care of before running acetoscan - so is the check for necessary prerequisites.

I suggest skipping the test altogether. One may inform the user about the required software, and in a written instruction mention that there is a script ,AcetoScan_software_check.sh, that may hep the user to see what's missing before running the pipeline.