OrcRemoteTargetServer.h: Suppress a warning. [-Wunused-variable]

FIXME: It may return ErrorOr.
llvm-svn: 257431

llvm/include/llvm/ExecutionEngine/Orc/OrcRemoteTargetServer.h

@@ -156,6 +156,7 @@ private:
         CompiledFnAddr, static_cast<TargetAddress>(
                             reinterpret_cast<uintptr_t>(TrampolineAddr)));
     assert(!EC && "Compile request failed");
+    (void)&EC;
     return CompiledFnAddr;
   }