Undo all the work on determinism in the driver. New plan soon.

luprex/core/cpp/source.cpp

@@ -401,7 +401,7 @@ static std::string source_load_lfunctions(lua_State *L) {
 std::string SourceDB::rebuild() {
     lua_State *L = lua_state_;
     source_clear_globals(L);
-    source_install_builtins(L);
+    // source_install_builtins(L);
     source_load_cfunctions(L);
     std::string errs = source_load_lfunctions(L);
     return errs;