[librsvg: 24/51] Remove unneeded type parameter E on AttributeResultExt

[Federico Mena Quintero <federico src gnome org>]

commit 695e30d44e7456f0542d4489e87a2c01664fb283
Author: Federico Mena Quintero <federico gnome org>
Date:   Tue Dec 17 14:32:50 2019 -0600

    Remove unneeded type parameter E on AttributeResultExt

 rsvg_internals/src/error.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/rsvg_internals/src/error.rs b/rsvg_internals/src/error.rs
index 497398c2..5e558e5e 100644
--- a/rsvg_internals/src/error.rs
+++ b/rsvg_internals/src/error.rs
@@ -165,11 +165,11 @@ impl fmt::Display for AcquireError {
 ///
 /// The call to `.attribute(attr)` converts the `Result` from `parse_foo()` into a full
 /// `NodeError` with the provided `attr`.
-pub trait AttributeResultExt<O, E> {
+pub trait AttributeResultExt<O> {
     fn attribute(self, attr: QualName) -> Result<O, NodeError>;
 }
 
-impl<O, E: Into<ValueErrorKind>> AttributeResultExt<O, E> for Result<O, E> {
+impl<O, E: Into<ValueErrorKind>> AttributeResultExt<O> for Result<O, E> {
     fn attribute(self, attr: QualName) -> Result<O, NodeError> {
         self.map_err(|e| e.into())
             .map_err(|err| NodeError { attr, err })