[librsvg: 7/32] Remove unused LoadingError::Cairo

[Federico Mena Quintero <federico src gnome org>]

commit 6c58ef3968a24f7af2194fd889d246c7859367f7
Author: Federico Mena Quintero <federico gnome org>
Date:   Wed Nov 25 12:17:53 2020 -0600

    Remove unused LoadingError::Cairo

 src/error.rs | 12 ------------
 1 file changed, 12 deletions(-)
---
diff --git a/src/error.rs b/src/error.rs
index accaae22..977f48be 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -336,9 +336,6 @@ pub enum LoadingError {
     /// An invalid stylesheet was used.
     BadCss,
 
-    /// A Cairo error happened during loading.
-    Cairo(cairo::Status),
-
     // FIXME: only used in load_image()
     EmptyData,
 
@@ -371,7 +368,6 @@ impl fmt::Display for LoadingError {
             LoadingError::BadDataUrl => write!(f, "invalid data: URL"),
             LoadingError::BadStylesheet => write!(f, "invalid stylesheet"),
             LoadingError::BadCss => write!(f, "invalid CSS"),
-            LoadingError::Cairo(status) => write!(f, "cairo error: {:?}", status),
             LoadingError::EmptyData => write!(f, "empty data"),
             LoadingError::SvgHasNoElements => write!(f, "SVG has no elements"),
             LoadingError::RootElementIsNotSvg => write!(f, "root element is not <svg>"),
@@ -382,14 +378,6 @@ impl fmt::Display for LoadingError {
     }
 }
 
-impl From<cairo::Status> for LoadingError {
-    fn from(e: cairo::Status) -> LoadingError {
-        assert!(e != cairo::Status::Success);
-
-        LoadingError::Cairo(e)
-    }
-}
-
 impl From<glib::Error> for LoadingError {
     fn from(e: glib::Error) -> LoadingError {
         LoadingError::Glib(e)