[librsvg] Remove unused imports

[Federico Mena Quintero <federico src gnome org>]

commit c058eb67d5c0768f3c20997ca9bcefa825fe6708
Author: Federico Mena Quintero <federico gnome org>
Date:   Mon Sep 25 19:13:36 2017 -0500

    Remove unused imports

 rust/src/gradient.rs     |    1 -
 rust/src/property_bag.rs |    1 -
 rust/src/stop.rs         |    1 -
 rust/src/structure.rs    |    1 -
 4 files changed, 0 insertions(+), 4 deletions(-)
---
diff --git a/rust/src/gradient.rs b/rust/src/gradient.rs
index e1cc313..e02b248 100644
--- a/rust/src/gradient.rs
+++ b/rust/src/gradient.rs
@@ -10,7 +10,6 @@ use cairo::MatrixTrait;
 use bbox::*;
 use drawing_ctx;
 use drawing_ctx::RsvgDrawingCtx;
-use error::*;
 use handle::RsvgHandle;
 use length::*;
 use node::*;
diff --git a/rust/src/property_bag.rs b/rust/src/property_bag.rs
index bdf9559..2c8d09a 100644
--- a/rust/src/property_bag.rs
+++ b/rust/src/property_bag.rs
@@ -1,4 +1,3 @@
-use ::cairo;
 use ::glib::translate::*;
 use ::libc;
 
diff --git a/rust/src/stop.rs b/rust/src/stop.rs
index 3d61f2f..cc396f5 100644
--- a/rust/src/stop.rs
+++ b/rust/src/stop.rs
@@ -12,7 +12,6 @@ use handle::RsvgHandle;
 use length::*;
 use node::*;
 use opacity::*;
-use parsers::Parse;
 use property_bag;
 use property_bag::*;
 use state::RsvgState;
diff --git a/rust/src/structure.rs b/rust/src/structure.rs
index d54986a..abe4ecf 100644
--- a/rust/src/structure.rs
+++ b/rust/src/structure.rs
@@ -10,7 +10,6 @@ use cairo::MatrixTrait;
 use aspect_ratio::*;
 use drawing_ctx::RsvgDrawingCtx;
 use drawing_ctx;
-use error::*;
 use handle::RsvgHandle;
 use length::*;
 use node::*;