Also reverts "[MLIR][Flang][DebugInfo] Convert debug format in MLIR translators" The patch above introduces behaviour controlled by an LLVM flag into the Flang driver, which is incorrect behaviour. This reverts commits: 3cc2710e0dd53bb82742904fa13014018a1137ed. 460408f78b30720950040e336f7b566aa7203269.