remove ResultPoint trait uses of Point

Point already has `x` and `y` properties, so accessing
them with `getX()` and `getY()` is needlessly verbose.
These calls have been removed, though the trait impl is
still presen for the time being, since the OneDReader
proc macro requires it.

src/rxing_result_point.rs

@@ -1,11 +1,12 @@
 use std::{fmt, iter::Sum};
 
-use crate::ResultPoint;
 use std::hash::Hash;
 
 #[cfg(feature = "serde")]
 use serde::{Deserialize, Serialize};
 
+use crate::ResultPoint;
+
 /**
  * <p>Encapsulates a point of interest in an image containing a barcode. Typically, this
  * would be the location of a finder pattern or the corner of the barcode, for example.</p>
@@ -64,6 +65,7 @@ impl<'a> Sum<&'a Point> for Point {
     }
 }
 
+/** This impl is temporary and is there to ease refactoring. */
 impl ResultPoint for Point {
     fn getX(&self) -> f32 {
         self.x