Remove unsafe operations from the code fixes

[psfinaki]

I would suggest removing all unsafe operations like exactlyOne, head, etc. From the code fixes (or really anywhere where it can crash in VS) regardless of if the underlying cause is legitimate. Instead of crashing report telemetry so we'll find out about it.

Could be also a nice analyzer to highlight all of these.

Originally posted by @0101 in #15685 (comment)