"Need" is a strong word, and the sources behind this question mostly avoid it. What they say is narrower.
What Cleveland Clinic actually says
Cleveland Clinic states: "While heel spurs can be removed with surgery, healthcare providers recommend non-surgical treatments to ease symptoms associated with heel spurs."
Note the order. The sentence grants that surgery is possible first, and then says what providers recommend instead. "Can be removed" is not the same as "should be removed."
The second sentence, with its exception
The same page continues: "Your heel spur might be removed as part of plantar fasciitis surgery, but healthcare providers rarely perform surgery to remove heel spurs."
So a spur can come out during another operation, and removing a spur on its own is described as rare.
Where heel pain gets sorted out
A spur is one possible finding in a painful heel, not the whole picture. These pages cover neighboring explanations: an AAFP evidence review of plantar fasciitis, MedlinePlus on heel injuries and disorders, Cleveland Clinic on heel bursitis, and AAOS OrthoInfo on heel pain.
What to confirm, and with whom
If someone near Itasca tells you a spur has to come out, ask which symptoms they are treating and which non-surgical options have been tried first. Cleveland Clinic puts those options ahead of surgery.
The phrase readers skip
"As part of plantar fasciitis surgery." A spur removed that way is a different decision from a spur-only operation, and the two should not be bundled in one conversation.