Hello,
it's me again with a short question. While constructing a polygon there were some vertices generated twice because of copying parts and combining them together. Usually I would just select all vertices and press Delete but in this case there are some vertices removed I want to keep. Have a look at the pictures to see what I mean. I don't want the polygon to be changed in form. Any ideas how to fix this quick?
before removing vertices:

after removing vertices:

Thanks for reading.