Function remove 

pub fn remove(state: &mut LuaState) -> Result<usize, LuaError>

table.remove(t, [pos]). Removes and returns t[pos] (default: the last element, #t), shifting the tail down to close the gap.

The out-of-bounds handling is gated three ways across versions, each pinned against its reference binary by v_remove_out_of_bounds_arg_gate_crossversion:

• 5.1 (legacy ltablib.c): there is NO luaL_argcheck. An out-of-range pos (outside [1, size]) silently removes nothing and returns ZERO results — never an error.
• 5.2 / 5.3: luaL_argcheck((lua_Unsigned)pos - 1u <= size, 1, ...) — the offending argument is reported as #1.
• 5.4 / 5.5: the identical check, but the argument index is #2.