The anti-pattern is about codes that serves no purpose. This is often seen in all levels, especially when integrating new technologies without a risk mitigation strategy and removal plan.
Consequences
Bloated (but not scalable) project.
Confusing tech components.
Symptoms
When requirements does not factor in "useless" product risk.
Code base contains "obsolete" comments or partitions.
Causes
Immature requirements like new risky technology integration or assimilation.
Unplanned / bad planning for development and release strategy related to new integration/assimilation.
Bad technical backup and version control.
Fixing Recipes
Check the requirements again. Perform a process review to prevent such event from happening again.
Plan for deprecation and removal schedules and implementation.
Implement deprecation notices.
On scheduled time, remove them via a refactor efforts.