GrowCNanswered grow question 3 years ago I do not defoliate or prune "suckers", especially on an auto before flowering. As long as a leaf is getting light let it grow. When a plant gets the size of yours I might prune some of the lowest to make watering easier and improve airflow on the bottom. But, do not go crazy. Leaves are the solar panels that power everything so keep as many as you can. Then when flowering starts I will tuck leaves under that are shading bud sites.
When it is well into flower I will prune leaves that shade buds but again, less pruning is better.
Keeping more leaves on the plant, especially near the bottom is a good nutrient reserve for the plant and a good indicator to you of nutrient problems. Sometimes with a deficiency the plant will rob nutrients from the bottom leaves giving you a early notification that you need to do something.