Oops. Don't normalize spill weights twice.

When the normalizeSpillWeights function was introduced, I forgot to remove this
normalization.

This change could affect register allocation. Hopefully for the better.

llvm-svn: 110119

llvm/lib/CodeGen/LiveIntervalAnalysis.cpp

@@ -1855,7 +1855,6 @@ addIntervalsForSpills(const LiveInterval &li,
   for (unsigned i = 0, e = NewLIs.size(); i != e; ++i) {
     LiveInterval *LI = NewLIs[i];
     if (!LI->empty()) {
-      LI->weight /= SlotIndex::NUM * getApproximateInstructionCount(*LI);
       if (!AddedKill.count(LI)) {
         LiveRange *LR = &LI->ranges[LI->ranges.size()-1];
         SlotIndex LastUseIdx = LR->end.getBaseIndex();