--- a/layout/style/ServoBindingList.h
+++ b/layout/style/ServoBindingList.h
@@ -125,19 +125,16 @@ SERVO_BINDING_FUNC(Servo_DeclarationBloc
                    RawServoAnimationValueBorrowed value)
 
 // AnimationValues handling
 SERVO_BINDING_FUNC(Servo_AnimationValues_Interpolate,
                    RawServoAnimationValueStrong,
                    RawServoAnimationValueBorrowed from,
                    RawServoAnimationValueBorrowed to,
                    double progress)
-SERVO_BINDING_FUNC(Servo_AnimationValues_Uncompute,
-                   RawServoDeclarationBlockStrong,
-                   RawServoAnimationValueBorrowedListBorrowed value)
 SERVO_BINDING_FUNC(Servo_AnimationValue_Serialize, void,
                    RawServoAnimationValueBorrowed value,
                    nsCSSPropertyID property,
                    nsAString* buffer)
 SERVO_BINDING_FUNC(Servo_AnimationValue_GetOpacity, float,
                    RawServoAnimationValueBorrowed value)
 SERVO_BINDING_FUNC(Servo_AnimationValue_GetTransform, void,
                    RawServoAnimationValueBorrowed value,

--- a/layout/style/ServoBindingTypes.h
+++ b/layout/style/ServoBindingTypes.h
@@ -8,17 +8,16 @@
 #define mozilla_ServoBindingTypes_h
 
 #include "mozilla/RefPtr.h"
 #include "mozilla/ServoTypes.h"
 #include "mozilla/UniquePtr.h"
 #include "nsStyleAutoArray.h"
 #include "nsTArray.h"
 
-struct RawServoAnimationValue;
 struct RawServoStyleSet;
 
 #define SERVO_ARC_TYPE(name_, type_) struct type_;
 #include "mozilla/ServoArcTypeList.h"
 #undef SERVO_ARC_TYPE
 
 namespace mozilla {
   class ServoElementSnapshot;
@@ -42,17 +41,16 @@ using mozilla::ServoElementSnapshot;
 
 typedef nsINode RawGeckoNode;
 typedef mozilla::dom::Element RawGeckoElement;
 typedef nsIDocument RawGeckoDocument;
 typedef nsPresContext RawGeckoPresContext;
 typedef nsTArray<mozilla::Keyframe> RawGeckoKeyframeList;
 typedef nsTArray<mozilla::ComputedKeyframeValues> RawGeckoComputedKeyframeValuesList;
 typedef nsTArray<mozilla::PropertyStyleAnimationValuePair> RawGeckoAnimationValueList;
-typedef nsTArray<const RawServoAnimationValue*> RawServoAnimationValueBorrowedList;
 typedef nsStyleAutoArray<mozilla::StyleAnimation> RawGeckoStyleAnimationList;
 
 // We have these helper types so that we can directly generate
 // things like &T or Borrowed<T> on the Rust side in the function, providing
 // additional safety benefits.
 //
 // FFI has a problem with templated types, so we just use raw pointers here.
 //
@@ -114,17 +112,16 @@ DECL_BORROWED_REF_TYPE_FOR(RawGeckoDocum
 DECL_NULLABLE_BORROWED_REF_TYPE_FOR(RawGeckoDocument)
 DECL_BORROWED_MUT_REF_TYPE_FOR(StyleChildrenIterator)
 DECL_BORROWED_MUT_REF_TYPE_FOR(ServoElementSnapshot)
 DECL_BORROWED_REF_TYPE_FOR(nsCSSValue)
 DECL_BORROWED_MUT_REF_TYPE_FOR(nsCSSValue)
 DECL_OWNED_REF_TYPE_FOR(RawGeckoPresContext)
 DECL_BORROWED_REF_TYPE_FOR(RawGeckoPresContext)
 DECL_BORROWED_MUT_REF_TYPE_FOR(RawGeckoAnimationValueList)
-DECL_BORROWED_REF_TYPE_FOR(RawServoAnimationValueBorrowedList)
 DECL_BORROWED_MUT_REF_TYPE_FOR(RawGeckoKeyframeList)
 DECL_BORROWED_REF_TYPE_FOR(RawGeckoKeyframeList)
 DECL_BORROWED_MUT_REF_TYPE_FOR(RawGeckoComputedKeyframeValuesList)
 DECL_BORROWED_REF_TYPE_FOR(RawGeckoStyleAnimationList)
 
 #undef DECL_ARC_REF_TYPE_FOR
 #undef DECL_OWNED_REF_TYPE_FOR
 #undef DECL_NULLABLE_OWNED_REF_TYPE_FOR

--- a/servo/components/style/build_gecko.rs
+++ b/servo/components/style/build_gecko.rs
@@ -413,17 +413,16 @@ mod bindings {
             "StyleBasicShapeType",
             "StyleGeometryBox",
             "StyleShapeSource",
             "StyleTransition",
             "mozilla::UniquePtr",
             "mozilla::DefaultDelete",
             "mozilla::Side",
             "mozilla::binding_danger::AssertAndSuppressCleanupPolicy",
-            "RawServoAnimationValueBorrowedListBorrowed",
         ];
         let opaque_types = [
             "std::pair__PCCP",
             "std::namespace::atomic___base", "std::atomic__My_base",
             "std::atomic___base",
             "mozilla::gfx::.*",
             "FallibleTArray",
             "mozilla::dom::Sequence",
@@ -611,17 +610,16 @@ mod bindings {
             "nsStyleXUL",
             "nsTimingFunction",
             "nscolor",
             "nscoord",
             "nsresult",
             "Loader",
             "ServoStyleSheet",
             "EffectCompositor_CascadeLevel",
-            "RawServoAnimationValueBorrowedListBorrowed",
         ];
         struct ArrayType {
             cpp_type: &'static str,
             rust_type: &'static str
         }
         let array_types = [
             ArrayType { cpp_type: "uintptr_t", rust_type: "usize" },
         ];

--- a/servo/ports/geckolib/glue.rs
+++ b/servo/ports/geckolib/glue.rs
@@ -49,17 +49,16 @@ use style::gecko_bindings::bindings::Raw
 use style::gecko_bindings::bindings::ServoComputedValuesBorrowedOrNull;
 use style::gecko_bindings::bindings::nsTArrayBorrowed_uintptr_t;
 use style::gecko_bindings::structs;
 use style::gecko_bindings::structs::{SheetParsingMode, nsIAtom, nsCSSPropertyID};
 use style::gecko_bindings::structs::{ThreadSafePrincipalHolder, ThreadSafeURIHolder};
 use style::gecko_bindings::structs::{nsRestyleHint, nsChangeHint};
 use style::gecko_bindings::structs::Loader;
 use style::gecko_bindings::structs::RawGeckoPresContextOwned;
-use style::gecko_bindings::structs::RawServoAnimationValueBorrowedListBorrowed;
 use style::gecko_bindings::structs::ServoStyleSheet;
 use style::gecko_bindings::structs::nsCSSValueSharedList;
 use style::gecko_bindings::structs::nsTimingFunction;
 use style::gecko_bindings::structs::nsresult;
 use style::gecko_bindings::sugar::ownership::{FFIArcHelpers, HasArcFFI, HasBoxFFI};
 use style::gecko_bindings::sugar::ownership::{HasSimpleFFI, Strong};
 use style::gecko_bindings::sugar::refptr::{GeckoArcPrincipal, GeckoArcURI};
 use style::gecko_properties::{self, style_structs};
@@ -249,30 +248,16 @@ pub extern "C" fn Servo_AnimationValues_
 pub extern "C" fn Servo_DeclarationBlockPushAnimationValue(declarations: RawServoDeclarationBlockBorrowed,
                                                            value: RawServoAnimationValueBorrowed)
 {
     let value = AnimationValue::as_arc(&value);
     let declarations = RwLock::<PropertyDeclarationBlock>::as_arc(&declarations);
     declarations.write().push(value.uncompute(), Importance::Normal);
 }
 
-#[no_mangle]
-pub extern "C" fn Servo_AnimationValues_Uncompute(value: RawServoAnimationValueBorrowedListBorrowed)
-     -> RawServoDeclarationBlockStrong
-{
-    let value = unsafe { value.as_ref().unwrap() };
-    let mut block = PropertyDeclarationBlock::new();
-    for v in value.iter() {
-        let raw_anim = unsafe { v.as_ref().unwrap() };
-        let anim = AnimationValue::as_arc(&raw_anim);
-        block.push(anim.uncompute(), Importance::Normal);
-    }
-    Arc::new(RwLock::new(block)).into_strong()
-}
-
 macro_rules! get_property_id_from_nscsspropertyid {
     ($property_id: ident, $ret: expr) => {{
         match PropertyId::from_nscsspropertyid($property_id) {
             Ok(property_id) => property_id,
             Err(()) => { return $ret; }
         }
     }}
 }