Workflow using the 'wait for condition' activity which sets a stage shows the activity type as part of the stage description. If you are on the table and the workflow is at the activity it shows as follows:

Stage ONE Waiting for Wait for condition: Activity ONE (In progress)

This is made up of the following parts:
Stage Name: Stage ONE
Default text: Waiting for
Activity Type: Wait for condition
Activity Name: Activity ONE
State: in progress

Why is the activity type included?

This is the expected behaviour and cannot be changed.