Drop type annotation from example

Author: termoshtt

examples/eigh.rs

@@ -6,7 +6,7 @@ use ndarray_linalg::*;
 
 fn main() {
     let a = arr2(&[[3.0, 1.0, 1.0], [1.0, 3.0, 1.0], [1.0, 1.0, 3.0]]);
-    let (e, vecs): (Array1<_>, Array2<_>) = a.clone().eigh(UPLO::Upper).unwrap();
+    let (e, vecs) = a.clone().eigh(UPLO::Upper).unwrap();
     println!("eigenvalues = \n{:?}", e);
     println!("V = \n{:?}", vecs);
     let av = a.dot(&vecs);