[librsvg: 5/9] Remove redundant clone() of values that are going to be dropped

[Federico Mena Quintero <federico src gnome org>]

commit 61ce4612b1a05fa492e2bd3e2c81604a3f9df643
Author: Sven Neumann <sven svenfoo org>
Date:   Thu Jan 30 08:51:34 2020 +0100

    Remove redundant clone() of values that are going to be dropped
    
    https://rust-lang.github.io/rust-clippy/master/index.html#redundant_clone

 rsvg_internals/src/document.rs    | 4 ++--
 rsvg_internals/src/drawing_ctx.rs | 7 ++-----
 2 files changed, 4 insertions(+), 7 deletions(-)
---
diff --git a/rsvg_internals/src/document.rs b/rsvg_internals/src/document.rs
index c4b1ee57..f111f32a 100644
--- a/rsvg_internals/src/document.rs
+++ b/rsvg_internals/src/document.rs
@@ -359,11 +359,11 @@ impl DocumentBuilder {
             Some(root) => {
                 if root.borrow().get_type() == NodeType::Svg {
                     let mut document = Document {
-                        tree: root.clone(),
+                        tree: root,
                         ids,
                         externs: RefCell::new(Resources::new()),
                         images: RefCell::new(Images::new()),
-                        load_options: load_options.clone(),
+                        load_options: load_options,
                         stylesheets,
                     };
 
diff --git a/rsvg_internals/src/drawing_ctx.rs b/rsvg_internals/src/drawing_ctx.rs
index 1c63c1a1..306d44a0 100644
--- a/rsvg_internals/src/drawing_ctx.rs
+++ b/rsvg_internals/src/drawing_ctx.rs
@@ -724,7 +724,7 @@ impl<'i> DrawingCtx<'i> {
                     // FIXME: deal with out of memory here
                     filters::render(&filter_node, values, child_surface, self, node_bbox)
                 } else {
-                    Ok(child_surface.clone())
+                    Ok(child_surface)
                 }
             }
 
@@ -1437,10 +1437,7 @@ impl<'i> AcquiredNodes<'i> {
         if node_is_accessed_by_reference(&node) {
             self.acquire_ref(&node)
         } else {
-            Ok(AcquiredNode {
-                stack: None,
-                node: node.clone(),
-            })
+            Ok(AcquiredNode { stack: None, node })
         }
     }