remove support for gcc 8
we need to move to gcc 10 soonish anyway to use C++20
MODIFY
tv/tv.cpp
tv/tv.cpp
#include "llvm/Passes/PassPlugin.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/raw_ostream.h"
+#include <filesystem>
#include <fstream>
#include <iostream>
#include <random>
#include <unordered_map>
#include <utility>
-#if (__GNUC__ < 8) && (!__APPLE__)
-# include <experimental/filesystem>
- namespace fs = std::experimental::filesystem;
-#else
-# include <filesystem>
- namespace fs = std::filesystem;
-#endif
-
using namespace IR;
using namespace llvm_util;
using namespace tools;
using namespace util;
using namespace std;
+namespace fs = std::filesystem;
namespace {

remove support for gcc 8
we need to move to gcc 10 soonish anyway to use C++20