build: remove entt library

include/entt/core/bit.hpp

@@ -1,26 +0,0 @@
-#ifndef ENTT_CORE_BIT_HPP
-#define ENTT_CORE_BIT_HPP
-
-#include "../config/config.h"
-#include "../stl/bit.hpp"
-#include "../stl/concepts.hpp"
-#include "../stl/cstddef.hpp"
-
-namespace entt {
-
-/**
- * @brief Fast module utility function (powers of two only).
- * @tparam Type Unsigned integer type.
- * @param value A value of unsigned integer type.
- * @param mod _Modulus_, it must be a power of two.
- * @return The common remainder.
- */
-template<stl::unsigned_integral Type>
-[[nodiscard]] constexpr Type fast_mod(const Type value, const stl::size_t mod) noexcept {
-    ENTT_ASSERT_CONSTEXPR(stl::has_single_bit(mod), "Value must be a power of two");
-    return static_cast<Type>(value & (mod - 1u));
-}
-
-} // namespace entt
-
-#endif