Remove integration test for 'optimize'
Remove integration test for 'optimize'

stuertz/restic,restic/restic,kurin/restic,ckemper67/restic,stuertz/restic,jayme-github/restic,fawick/restic,fawick/restic,ar-jan/restic,byo/restic,middelink/restic,byo/restic,kurin/restic,middelink/restic,ar-jan/restic,restic/restic,arithmetric/restic,mappu/restic,jayme-github/restic