remove autoupgrade support for LLVM 2.9 exception stuff. Mainline supports

LLVM 3.0 and later.

llvm-svn: 145165

llvm/lib/Bitcode/Reader/BitcodeReader.cpp

@@ -2701,9 +2701,6 @@ bool BitcodeReader::MaterializeModule(Module *M, std::string *ErrInfo) {
   }
   std::vector<std::pair<Function*, Function*> >().swap(UpgradedIntrinsics);
 
-  // Upgrade to new EH scheme. N.B. This will go away in 3.1.
-  UpgradeExceptionHandling(M);
-
   // Check debug info intrinsics.
   CheckDebugInfoIntrinsics(TheModule);