nalgebra-glm: Fix clippy single_component_path_imports.

These imports are redundant and not needed.

nalgebra-glm/src/common.rs

@@ -1,5 +1,4 @@
 use core::mem;
-use na;
 
 use crate::aliases::{TMat, TVec};
 use crate::traits::Number;

nalgebra-glm/src/ext/matrix_projection.rs

@@ -1,5 +1,3 @@
-use na;
-
 use crate::aliases::{TMat4, TVec2, TVec3, TVec4};
 use crate::RealNumber;
 

nalgebra-glm/src/gtc/constants.rs

@@ -1,5 +1,4 @@
 use crate::RealNumber;
-use na;
 
 /// The Euler constant.
 ///

nalgebra-glm/src/trigonometric.rs

@@ -1,5 +1,3 @@
-use na;
-
 use crate::aliases::TVec;
 use crate::RealNumber;