remove extra functions

src/maths/voxmaths.hpp

@@ -2,47 +2,16 @@
 
 #include "typedefs.hpp"
 
-inline int floordiv(int a, int b) {
+inline constexpr int floordiv(int a, int b) {
     if (a < 0 && a % b) {
         return (a / b) - 1;
     }
     return a / b;
 }
 
-inline int ceildiv(int a, int b) {
+inline constexpr int ceildiv(int a, int b) {
     if (a > 0 && a % b) {
         return a / b + 1;
     }
     return a / b;
 }
-
-inline int max(int a, int b) {
-    return (a > b) ? a : b;
-}
-
-inline int min(int a, int b) {
-    return (a < b) ? a : b;
-}
-
-inline int64_t max(int64_t a, int64_t b) {
-    return (a > b) ? a : b;
-}
-
-inline int64_t min(int64_t a, int64_t b) {
-    return (a < b) ? a : b;
-}
-
-static unsigned int g_seed;
-
-inline void fast_srand(int seed) {
-    g_seed = seed;
-}
-
-inline int fast_rand(void) {
-    g_seed = (214013 * g_seed + 2531011);
-    return (g_seed >> 16) & 0x7FFF;
-}
-
-inline light_t light_pack(ubyte r, ubyte g, ubyte b, ubyte s) {
-    return r | (g << 4) | (b << 8) | (s << 12);
-}