How can we remove overlapping edges? I am cleaning up a friend's model and often run into this problem: Often, there are multiple edges of various lengths overlapping along the same line. Below is a visual example:

...that overlap to cause:

...as opposed to the desired:

I was wondering if there was an easy way to clean up edges like this without manually deleting the offending edges and reconnecting the relevant vertices?
Check this video, it may help:

https://www.youtube.com/watch?v=s2Df3C3_IYE