Nuke the old JIT.

I am sure we will be finding bits and pieces of dead code for years to
come, but this is a good start.

Thanks to Lang Hames for making MCJIT a good replacement!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215111 91177308-0d34-0410-b5e6-96231b3b80d8

tools/llvm-jitlistener/LLVMBuild.txt

@@ -19,4 +19,4 @@
 type = Tool
 name = llvm-jitlistener
 parent = Tools
-required_libraries = AsmParser BitReader IRReader Interpreter JIT MCJIT NativeCodeGen Object SelectionDAG Native
+required_libraries = AsmParser BitReader IRReader Interpreter MCJIT NativeCodeGen Object SelectionDAG Native

tools/llvm-jitlistener/llvm-jitlistener.cpp

@@ -149,7 +149,6 @@ protected:
       .setEngineKind(EngineKind::JIT)
       .setErrorStr(&Error)
       .setJITMemoryManager(MemMgr)
-      .setUseMCJIT(true)
       .create());
     if (Error.empty() == false)
       errs() << Error;