Refactor: calling remove_unit is more appropriate
Refactor: calling remove_unit is more appropriate

ultimate-pa/benchexec,dbeyer/benchexec,ultimate-pa/benchexec,martin-neuhaeusser/benchexec,martin-neuhaeusser/benchexec,ultimate-pa/benchexec,IljaZakharov/benchexec,ultimate-pa/benchexec,dbeyer/benchexec,sosy-lab/benchexec,sosy-lab/benchexec,sosy-lab/benchexec,martin-neuhaeusser/benchexec,sosy-lab/benchexec,ultimate-pa/benchexec,IljaZakharov/benchexec,IljaZakharov/benchexec,ultimate-pa/benchexec,sosy-lab/benchexec,martin-neuhaeusser/benchexec,sosy-lab/benchexec,dbeyer/benchexec,dbeyer/benchexec,IljaZakharov/benchexec