Revert "Temporary task to clean up old assets route"
Revert "Temporary task to clean up old assets route"

This has now run everywhere.

This reverts commit 91e29edde40759681d33ca347c0b23b590252ebf.

alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf