[librsvg: 3/4] Remove unused 'mut'

[Federico Mena Quintero <federico src gnome org>]

commit dd99394eaa0e72a440f3259859f267481c85b1a8
Author: Federico Mena Quintero <federico gnome org>
Date:   Tue Apr 30 09:31:25 2019 -0500

    Remove unused 'mut'

 rsvg_internals/src/c_api.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/rsvg_internals/src/c_api.rs b/rsvg_internals/src/c_api.rs
index f9f6a73b..bc0fcbe8 100644
--- a/rsvg_internals/src/c_api.rs
+++ b/rsvg_internals/src/c_api.rs
@@ -476,7 +476,7 @@ impl ObjectImpl for CHandle {
 
 impl CHandle {
     fn set_base_url(&self, url: &str) {
-        let mut state = self.load_state.borrow();
+        let state = self.load_state.borrow();
 
         match *state {
             LoadState::Start => (),