Half the lights are Pelican crossings. I personally have always preferred Zebra crossings. These give control to the pedestrians so the very young and old user has the time they need to cross the road. If they restore the zebras it is a good thing.
Let's just be accurate with the figures...
There are 145 sets of lights being removed.
75 of them are junctions lights (non-pedestrian)
38 of them are pelican crossings.
15 of them are toucan crossings.
17 of them are puffin crossings.
Personally, I don't have a problem with junction lights being removed. Many of them are unnecessary and make junctions less safe for vulnerable road users.
When we lived in Pimlico, the lights near the flat failed a number of times. Traffic actually flowed better, but the change in drivers' behaviour was what was really good. They slowed down and gave way to other road users (including cyclists and pedestrians).
As with contraflow cycling, I think that not having lights at junctions makes drivers less certain. This in turn makes them think more about what is going on around them and to take account of other road users.
The evidence from Europe seems to be that removing traffic lights, and in some places pedestrian crossings, actually improves road safety as it removes the priority given to drivers.
I'm less sure about the removal of the crossings without seeing the situation of each one. However, on principle I'm not a huge fan of crossings. They create a false sense of 'the place of pedestrians'.
Personally, I'm a fan of the naked streets principle.