[librsvg] paint_server: remove leftover trait

[Paolo Borelli <pborelli src gnome org>]

commit 07615cd2b956926870d1bf6ae0f7686150c07069
Author: Paolo Borelli <pborelli gnome org>
Date:   Fri Aug 28 17:42:25 2020 +0200

    paint_server: remove leftover trait

 rsvg_internals/src/paint_server.rs | 11 -----------
 1 file changed, 11 deletions(-)
---
diff --git a/rsvg_internals/src/paint_server.rs b/rsvg_internals/src/paint_server.rs
index 90062e8e..b64e01c5 100644
--- a/rsvg_internals/src/paint_server.rs
+++ b/rsvg_internals/src/paint_server.rs
@@ -112,17 +112,6 @@ pub trait AsPaintSource {
     ) -> Result<bool, RenderingError>;
 }
 
-// Any of the attributes in gradient and pattern elements may be omitted.
-// The missing ones are resolved from the "fallback" IRI. If still missing,
-// they are resolved to the default value
-pub trait Resolve {
-    fn is_resolved(&self) -> bool;
-
-    fn resolve_from_fallback(&self, fallback: &Self) -> Self;
-
-    fn resolve_from_defaults(&self) -> Self;
-}
-
 #[cfg(test)]
 mod tests {
     use super::*;