Delete unused constexpr ints in LowerToLLVMDialect.
Add (void)toStringRef for non-debug builds.
Fixes tensorflow/mlir#232.
PiperOrigin-RevId:
280671014
LinalgOpView dependentOpView) {
LLVM_DEBUG(dbgs() << "\nAdd dep type " << toStringRef(dt) << ":\t"
<< *indexingOpView.op << " -> " << *dependentOpView.op);
+ (void)toStringRef;
dependencesFromGraphs[dt][indexingOpView.op].push_back(
LinalgDependenceGraphElem{dependentOpView, indexingOpView.view});
dependencesIntoGraphs[dt][dependentOpView.op].push_back(