Revert "backend: dwarfdbginf: Use LEB128 encoding for lines and columns"

[MoonlightSentinel]

Reverts #13246

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Just checking whether this triggered the OMF pipelines to hang consistently (probably yet another OPTLINK bug)

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[ljmf00]

AFAIK, this change doesn't affect OMF. Isn't CodeView debug info used instead?

[MoonlightSentinel]

Indeed. Just checked the last few PR's that were merged before Azure reported the first timeout .