fix(m2): remove redundant version check in chunked parse

Fixed clippy error 'if_same_then_else' by removing redundant
version check that was checking same condition as flag check.

The USE_TEXTURE_COMBINERS flag alone determines whether
texture_combiner_combos field exists, regardless of M2 version.

Author: danielsreichenbach

file-formats/graphics/wow-m2/src/model.rs

@@ -3207,9 +3207,7 @@ impl M2Model {
             None
         };
 
-        let texture_combiner_combos = if m2_version >= M2Version::Cataclysm {
-            Some(M2Array::parse(chunk_inner)?)
-        } else if flags.contains(M2ModelFlags::USE_TEXTURE_COMBINERS) {
+        let texture_combiner_combos = if flags.contains(M2ModelFlags::USE_TEXTURE_COMBINERS) {
             Some(M2Array::parse(chunk_inner)?)
         } else {
             None