[librsvg] property_bag.rs: Remove unused function

[Federico Mena Quintero <federico src gnome org>]

commit 5acb65bb10a429fdfcf429255c3c3a0ce6f21ac1
Author: Federico Mena Quintero <federico gnome org>
Date:   Wed Apr 26 16:39:44 2017 -0500

    property_bag.rs: Remove unused function

 rust/src/property_bag.rs |    5 -----
 1 files changed, 0 insertions(+), 5 deletions(-)
---
diff --git a/rust/src/property_bag.rs b/rust/src/property_bag.rs
index 239eaa5..87d432c 100644
--- a/rust/src/property_bag.rs
+++ b/rust/src/property_bag.rs
@@ -12,16 +12,11 @@ use parsers::ParseError;
 pub enum RsvgPropertyBag {}
 
 extern "C" {
-    fn rsvg_property_bag_size (pbag: *const RsvgPropertyBag) -> libc::c_uint;
     fn rsvg_property_bag_lookup (pbag: *const RsvgPropertyBag, key: *const libc::c_char) -> *const 
libc::c_char;
     fn rsvg_property_bag_dup (pbag: *const RsvgPropertyBag) -> *mut RsvgPropertyBag;
     fn rsvg_property_bag_free (pbag: *mut RsvgPropertyBag);
 }
 
-pub fn get_size (pbag: *const RsvgPropertyBag) -> usize {
-    unsafe { rsvg_property_bag_size (pbag) as usize }
-}
-
 pub fn lookup (pbag: *const RsvgPropertyBag, key: &str) -> Option<String> {
     unsafe {
         let c_value = rsvg_property_bag_lookup (pbag, key.to_glib_none ().0);