like some people believe the removal of the fan leaves at flowering helps the plant it dont!, there is another school of thought that trimmin or removing the leaves will allow better light to the bug,
the only thing that removing seeds at a very late stage ie a couple of days b4 she's cropped may help by reducing the photosynthasis and helping reduce the amount of moisture etc the plant will draw into itself!wether or not this makes for a cleaner smoke i can not comment, but am familiar with the practice, bassically leave all the leaves to do there job, they grow the plant they produce the photosythasis needed to grow flowers not the flowers themselves,