[MLIR][OpenMP] NFC: Remove LoopControl parsing/printing code (#88909)

This patch removes the LoopControl parsing/printing functions that are
no longer used after transitioning `omp.simdloop` and `omp.taskloop`
into loop wrapper operations.

Author: skatrak

mlir/lib/Dialect/OpenMP/IR/OpenMPDialect.cpp

@@ -1548,58 +1548,6 @@ void printWsloop(OpAsmPrinter &p, Operation *op, Region &region,
   p.printRegion(region, /*printEntryBlockArgs=*/false);
 }
 
-/// loop-control ::= `(` ssa-id-list `)` `:` type `=`  loop-bounds
-/// loop-bounds := `(` ssa-id-list `)` to `(` ssa-id-list `)` inclusive? steps
-/// steps := `step` `(`ssa-id-list`)`
-ParseResult
-parseLoopControl(OpAsmParser &parser, Region &region,
-                 SmallVectorImpl<OpAsmParser::UnresolvedOperand> &lowerBound,
-                 SmallVectorImpl<OpAsmParser::UnresolvedOperand> &upperBound,
-                 SmallVectorImpl<OpAsmParser::UnresolvedOperand> &steps,
-                 SmallVectorImpl<Type> &loopVarTypes, UnitAttr &inclusive) {
-  // Parse an opening `(` followed by induction variables followed by `)`
-  SmallVector<OpAsmParser::Argument> ivs;
-  Type loopVarType;
-  if (parser.parseArgumentList(ivs, OpAsmParser::Delimiter::Paren) ||
-      parser.parseColonType(loopVarType) ||
-      // Parse loop bounds.
-      parser.parseEqual() ||
-      parser.parseOperandList(lowerBound, ivs.size(),
-                              OpAsmParser::Delimiter::Paren) ||
-      parser.parseKeyword("to") ||
-      parser.parseOperandList(upperBound, ivs.size(),
-                              OpAsmParser::Delimiter::Paren))
-    return failure();
-
-  if (succeeded(parser.parseOptionalKeyword("inclusive")))
-    inclusive = UnitAttr::get(parser.getBuilder().getContext());
-
-  // Parse step values.
-  if (parser.parseKeyword("step") ||
-      parser.parseOperandList(steps, ivs.size(), OpAsmParser::Delimiter::Paren))
-    return failure();
-
-  // Now parse the body.
-  loopVarTypes = SmallVector<Type>(ivs.size(), loopVarType);
-  for (auto &iv : ivs)
-    iv.type = loopVarType;
-
-  return parser.parseRegion(region, ivs);
-}
-
-void printLoopControl(OpAsmPrinter &p, Operation *op, Region &region,
-                      ValueRange lowerBound, ValueRange upperBound,
-                      ValueRange steps, TypeRange loopVarTypes,
-                      UnitAttr inclusive) {
-  auto args = region.front().getArguments();
-  p << " (" << args << ") : " << args[0].getType() << " = (" << lowerBound
-    << ") to (" << upperBound << ") ";
-  if (inclusive)
-    p << "inclusive ";
-  p << "step (" << steps << ") ";
-  p.printRegion(region, /*printEntryBlockArgs=*/false);
-}
-
 //===----------------------------------------------------------------------===//
 // Simd construct [2.9.3.1]
 //===----------------------------------------------------------------------===//