Fix minor GCC warnings.

Unused typedefs and unused variables.

llvm-svn: 196526
diff --git a/llvm/tools/lli/RemoteTargetExternal.cpp b/llvm/tools/lli/RemoteTargetExternal.cpp
index 742a948..f6ed849 100644
--- a/llvm/tools/lli/RemoteTargetExternal.cpp
+++ b/llvm/tools/lli/RemoteTargetExternal.cpp
@@ -59,6 +59,7 @@
 
 void RemoteTargetExternal::SendAllocateSpace(uint32_t Alignment, uint32_t Size) {
   int rc;
+  (void)rc;
   uint32_t MsgType = (uint32_t)LLI_AllocateSpace;
   rc = WriteBytes(&MsgType, 4);
   assert(rc == 4 && "Error writing message type.");