Remove unused glam dependency

This was used before we used an internal Havok packfile parser, but it's
no longer needed!

Cargo.toml

@@ -44,7 +44,7 @@ game_install = []
 # enables support for extracting visual data, such as models, textures, materials, etc.
 # this enables a bunch of dependencies!
 # tip: can be safely turned off for launchers and other tools that simply need to extract the bare minimum of data
-visual_data = ["dep:half", "dep:glam", "dep:bitflags", "dep:texpresso"]
+visual_data = ["dep:half", "dep:bitflags", "dep:texpresso"]
 
 # testing only features
 retail_game_testing = []
@@ -66,9 +66,6 @@ paste = "1"
 # needed for half-float support which FFXIV uses in its model data
 half = { version = "2", optional = true }
 
-# needed for deconstructing skeleton pose matrices
-glam = { version = "0.24.1", optional = true }
-
 # needed for c-style bitflags used in some formats (such as tex files)
 # cannot upgrade to 2.0.0, breaking changes that aren't recoverable: https://github.com/bitflags/bitflags/issues/314
 bitflags = { version = "1.3", optional = true }

src/skeleton.rs

@@ -8,7 +8,6 @@
 use std::io::{Cursor, SeekFrom};
 use binrw::{binread, BinRead};
 use binrw::helpers::until_eof;
-use glam::Mat4;
 
 use crate::havok::{HavokAnimationContainer, HavokBinaryTagFileReader};
 use crate::ByteSpan;