diff --git a/dom/base/nsGkAtomList.h b/dom/base/nsGkAtomList.h
index c6b9de4fcd37..7a356c7cf3bc 100644
--- a/dom/base/nsGkAtomList.h
+++ b/dom/base/nsGkAtomList.h
@@ -2181,13 +2181,6 @@ GK_ATOM(TypingTxnName, "Typing")
 GK_ATOM(IMETxnName, "IME")
 GK_ATOM(DeleteTxnName, "Deleting")
 
-// Font families
-GK_ATOM(serif, "serif")
-GK_ATOM(sans_serif, "sans-serif")
-GK_ATOM(cursive, "cursive")
-GK_ATOM(fantasy, "fantasy")
-GK_ATOM(monospace, "monospace")
-
 // IPC stuff
 GK_ATOM(Remote, "remote")
 GK_ATOM(RemoteId, "_remote_id")
diff --git a/layout/style/ServoBindings.cpp b/layout/style/ServoBindings.cpp
index aaf5985c164e..593bab372c62 100644
--- a/layout/style/ServoBindings.cpp
+++ b/layout/style/ServoBindings.cpp
@@ -139,19 +139,6 @@ Gecko_IsRootElement(RawGeckoElement* aElement)
   return aElement->OwnerDoc()->GetRootElement() == aElement;
 }
 
-nsIAtom*
-Gecko_LocalName(RawGeckoElement* aElement)
-{
-  return aElement->NodeInfo()->NameAtom();
-}
-
-nsIAtom*
-Gecko_Namespace(RawGeckoElement* aElement)
-{
-  int32_t id = aElement->NodeInfo()->NamespaceID();
-  return nsContentUtils::NameSpaceManager()->NameSpaceURIAtom(id);
-}
-
 ServoNodeData*
 Gecko_GetNodeData(RawGeckoNode* aNode)
 {
@@ -164,67 +151,6 @@ Gecko_SetNodeData(RawGeckoNode* aNode, ServoNodeData* aData)
   aNode->SetServoNodeData(aData);
 }
 
-nsIAtom*
-Gecko_Atomize(const char* aString, uint32_t aLength)
-{
-  // XXXbholley: This isn't yet threadsafe, but will probably need to be.
-  MOZ_ASSERT(NS_IsMainThread());
-  return NS_Atomize(nsDependentCSubstring(aString, aLength)).take();
-}
-
-void
-Gecko_AddRefAtom(nsIAtom* aAtom)
-{
-  // XXXbholley: This isn't yet threadsafe, but will probably need to be.
-  MOZ_ASSERT(NS_IsMainThread());
-  NS_ADDREF(aAtom);
-}
-
-void
-Gecko_ReleaseAtom(nsIAtom* aAtom)
-{
-  // XXXbholley: This isn't yet threadsafe, but will probably need to be.
-  MOZ_ASSERT(NS_IsMainThread());
-  NS_RELEASE(aAtom);
-}
-
-uint32_t
-Gecko_HashAtom(nsIAtom* aAtom)
-{
-  return aAtom->hash();
-}
-
-const uint16_t*
-Gecko_GetAtomAsUTF16(nsIAtom* aAtom, uint32_t* aLength)
-{
-  static_assert(sizeof(char16_t) == sizeof(uint16_t), "Servo doesn't know what a char16_t is");
-  MOZ_ASSERT(aAtom);
-  *aLength = aAtom->GetLength();
-  return reinterpret_cast<const uint16_t*>(aAtom->GetUTF16String());
-}
-
-bool
-Gecko_AtomEqualsUTF8(nsIAtom* aAtom, const char* aString, uint32_t aLength)
-{
-  // XXXbholley: We should be able to do this without converting, I just can't
-  // find the right thing to call.
-  nsAutoString atomStr;
-  aAtom->ToString(atomStr);
-  NS_ConvertUTF8toUTF16 inStr(nsDependentCString(aString, aLength));
-  return atomStr.Equals(inStr);
-}
-
-bool
-Gecko_AtomEqualsUTF8IgnoreCase(nsIAtom* aAtom, const char* aString, uint32_t aLength)
-{
-  // XXXbholley: We should be able to do this without converting, I just can't
-  // find the right thing to call.
-  nsAutoString atomStr;
-  aAtom->ToString(atomStr);
-  NS_ConvertUTF8toUTF16 inStr(nsDependentCString(aString, aLength));
-  return nsContentUtils::EqualsIgnoreASCIICase(atomStr, inStr);
-}
-
 void
 Gecko_SetListStyleType(nsStyleList* style_struct, uint32_t type)
 {
diff --git a/layout/style/ServoBindings.h b/layout/style/ServoBindings.h
index c58631f5c557..601dde52f4ad 100644
--- a/layout/style/ServoBindings.h
+++ b/layout/style/ServoBindings.h
@@ -56,23 +56,12 @@ bool Gecko_IsTextNode(RawGeckoNode* node);
 bool Gecko_IsVisitedLink(RawGeckoElement* element);
 bool Gecko_IsUnvisitedLink(RawGeckoElement* element);
 bool Gecko_IsRootElement(RawGeckoElement* element);
-nsIAtom* Gecko_LocalName(RawGeckoElement* element);
-nsIAtom* Gecko_Namespace(RawGeckoElement* element);
 
 // Node data.
 ServoNodeData* Gecko_GetNodeData(RawGeckoNode* node);
 void Gecko_SetNodeData(RawGeckoNode* node, ServoNodeData* data);
 void Servo_DropNodeData(ServoNodeData* data);
 
-// Atoms.
-nsIAtom* Gecko_Atomize(const char* aString, uint32_t aLength);
-void Gecko_AddRefAtom(nsIAtom* aAtom);
-void Gecko_ReleaseAtom(nsIAtom* aAtom);
-uint32_t Gecko_HashAtom(nsIAtom* aAtom);
-const uint16_t* Gecko_GetAtomAsUTF16(nsIAtom* aAtom, uint32_t* aLength);
-bool Gecko_AtomEqualsUTF8(nsIAtom* aAtom, const char* aString, uint32_t aLength);
-bool Gecko_AtomEqualsUTF8IgnoreCase(nsIAtom* aAtom, const char* aString, uint32_t aLength);
-
 // Counter style.
 struct nsStyleList;
 void Gecko_SetListStyleType(nsStyleList* style_struct, uint32_t type);