Clean up debug output.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110940 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/CalcSpillWeights.cpp

@@ -201,8 +201,6 @@ void VirtRegAuxInfo::CalculateRegClass(unsigned reg) {
   // This could happen if reg is only used by COPY instructions, so we may need
   // to improve on this.
   if (rcs.empty()) {
-    DEBUG(dbgs() << "Not inflating unconstrained" << orc->getName() << ":%reg"
-                 << reg << ".\n");
     return;
   }