Mehdi Amini 71302b6711 Revert "[MLIR][Presburger] introduce SetCoalescer"
This reverts commit dad80e97109afda17a278a5c1a87b2c595aa01a6.

The build is broken with some configurations (gcc-5 and gcc-8):

mlir/lib/Analysis/Presburger/PresburgerRelation.cpp:402:32: error: qualified name does not name a class before '{' token
 class presburger::SetCoalescer {
2022-03-17 22:50:16 +00:00
..

Multi-Level Intermediate Representation

See https://mlir.llvm.org/ for more information.