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/multi/by_quadrant_reader.rs

@@ -17,7 +17,7 @@
 use std::collections::HashMap;
 
 use crate::common::Result;
-use crate::{point, Exceptions, Point, RXingResult, Reader, ResultPoint};
+use crate::{point, Exceptions, Point, RXingResult, Reader};
 
 /**
  * This class attempts to decode a barcode from an image, not by scanning the whole image,
@@ -133,7 +133,7 @@ impl<T: Reader> ByQuadrantReader<T> {
         // result
         points
             .iter()
-            .map(|relative| point(relative.getX() + leftOffset, relative.getY() + topOffset))
+            .map(|relative| point(relative.x + leftOffset, relative.y + topOffset))
             .collect()
     }
 }