Revert "Make a comparator's argument `const'. This fixes the build for
MSVC 9."

The "fix" was meaningless.

This reverts commit r127245.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127260 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/LiveInterval.cpp b/lib/CodeGen/LiveInterval.cpp
index 40b5028..f2345bc 100644
--- a/lib/CodeGen/LiveInterval.cpp
+++ b/lib/CodeGen/LiveInterval.cpp
@@ -36,7 +36,7 @@
   bool operator()(SlotIndex A, const LiveRange &B) const {
     return A < B.end;
   }
-  bool operator()(const LiveRange &A, const SlotIndex B) const {
+  bool operator()(const LiveRange &A, SlotIndex B) const {
     return A.end < B;
   }
 };