[librsvg] element: remove dedicated is_overflow getter

[Paolo Borelli <pborelli src gnome org>]

commit 0b80d49db364f3a85f727942be94a50f801a127c
Author: Paolo Borelli <pborelli gnome org>
Date:   Sun Mar 22 20:33:09 2020 +0100

    element: remove dedicated is_overflow getter
    
    Now we have a getter for the specified values, so we do not need
    a special case.

 rsvg_internals/src/drawing_ctx.rs | 3 ++-
 rsvg_internals/src/element.rs     | 4 ----
 2 files changed, 2 insertions(+), 5 deletions(-)
---
diff --git a/rsvg_internals/src/drawing_ctx.rs b/rsvg_internals/src/drawing_ctx.rs
index 965561ab..dfd138ba 100644
--- a/rsvg_internals/src/drawing_ctx.rs
+++ b/rsvg_internals/src/drawing_ctx.rs
@@ -1178,7 +1178,8 @@ impl DrawingCtx {
             let symbol = elt.get_impl::<Symbol>();
 
             let clip_mode = if !values.is_overflow()
-                || (values.overflow == Overflow::Visible && child.borrow_element().is_overflow())
+                || (values.overflow == Overflow::Visible
+                    && child.borrow_element().get_specified_values().is_overflow())
             {
                 Some(ClipMode::ClipToVbox)
             } else {
diff --git a/rsvg_internals/src/element.rs b/rsvg_internals/src/element.rs
index 8d927464..6166c4f0 100644
--- a/rsvg_internals/src/element.rs
+++ b/rsvg_internals/src/element.rs
@@ -229,10 +229,6 @@ impl Element {
         self.transform
     }
 
-    pub fn is_overflow(&self) -> bool {
-        self.specified_values.is_overflow()
-    }
-
     pub fn set_atts(&mut self, parent: Option<&Node>, pbag: &PropertyBag<'_>, locale: &Locale) {
         self.save_style_attribute(pbag);