[librsvg: 7/90] DrawingCtx::new() - No need to calculate a specific affine now

[Federico Mena Quintero <federico src gnome org>]

commit 16e81cba83a1561b2ab493df8a54e035d1d2d93c
Author: Federico Mena Quintero <federico gnome org>
Date:   Fri Mar 8 10:45:27 2019 -0600

    DrawingCtx::new() - No need to calculate a specific affine now

 rsvg_internals/src/drawing_ctx.rs | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)
---
diff --git a/rsvg_internals/src/drawing_ctx.rs b/rsvg_internals/src/drawing_ctx.rs
index 57db2522..e85f2851 100644
--- a/rsvg_internals/src/drawing_ctx.rs
+++ b/rsvg_internals/src/drawing_ctx.rs
@@ -128,15 +128,13 @@ impl DrawingCtx {
         // This is more or less a hack to make measuring geometries possible,
         // while the code gets refactored not to need special cases for that.
 
-        let (rect, vbox, affine) = if measuring {
+        let (rect, vbox) = if measuring {
             (
                 cairo::Rectangle::new(0.0, 0.0, 1.0, 1.0),
                 ViewBox::new(0.0, 0.0, 1.0, 1.0),
-                cairo::Matrix::identity(),
             )
         } else {
             let rect = *viewport;
-            let affine = cairo::Matrix::identity();
 
             // https://www.w3.org/TR/SVG2/coords.html#InitialCoordinateSystem
             //
@@ -157,7 +155,7 @@ impl DrawingCtx {
                 height: viewport.height,
             };
 
-            (rect, vbox, affine)
+            (rect, vbox)
         };
 
         let mut view_box_stack = Vec::new();
@@ -172,7 +170,7 @@ impl DrawingCtx {
             cr: cr.clone(),
             initial_cr: cr.clone(),
             view_box_stack: Rc::new(RefCell::new(view_box_stack)),
-            bbox: BoundingBox::new(&affine),
+            bbox: BoundingBox::new(&cairo::Matrix::identity()),
             bbox_stack: Vec::new(),
             drawsub_stack: Vec::new(),
             acquired_nodes: Rc::new(RefCell::new(Vec::new())),