removes Matrix::new

all matrices should be created through derive

src/matrix.rs

@@ -1,10 +1,10 @@
 use crate::{
     errors::CrystalsError,
     params::{SecurityLevel, K},
-    polynomials::{Montgomery, Normalised, Poly, State},
+    polynomials::{Montgomery, Poly, State},
     vectors::PolyVec,
 };
-use tinyvec::{array_vec, ArrayVec};
+use tinyvec::ArrayVec;
 
 #[derive(Default, PartialEq, Debug, Eq)]
 pub struct Matrix<S: State> {
@@ -46,26 +46,6 @@ impl<S: State + Copy> Matrix<S> {
     }
 }
 
-impl Matrix<Normalised> {
-    // Create a new, empty matrix
-    fn new(k: K) -> Self {
-        let polyvecs = match k {
-            K::Two => array_vec!([PolyVec<Normalised>; 4] => PolyVec::new(k), PolyVec::new(k)),
-            K::Three => {
-                array_vec!([PolyVec<Normalised>; 4] => PolyVec::new(k), PolyVec::new(k), PolyVec::new(k))
-            }
-            K::Four => {
-                array_vec!([PolyVec<Normalised>; 4] => PolyVec::new(k), PolyVec::new(k), PolyVec::new(k), PolyVec::new(k))
-            }
-        };
-
-        Self {
-            polyvecs,
-            sec_level: k,
-        }
-    }
-}
-
 impl Matrix<Montgomery> {
     pub(crate) fn derive(
         seed: &[u8],