diff --git a/src/memory.hh b/src/memory.hh
index fe6f70ea..b25e687d 100644
--- a/src/memory.hh
+++ b/src/memory.hh
@@ -89,13 +89,6 @@ template<typename T, MemoryDomain domain>
 struct Allocator
 {
     using value_type = T;
-    // TODO: remove that once we have a c++11 compliant stdlib
-    using pointer = T*;
-    using const_pointer = const T*;
-    using reference = T&;
-    using const_reference = const T&;
-    using size_type = std::size_t;
-    using difference_type = std::ptrdiff_t;
 
     Allocator() = default;
     template<typename U>
@@ -117,27 +110,16 @@ struct Allocator
         on_dealloc(domain, size);
         ::operator delete(ptr);
     }
-
-    template<class U, class... Args>
-    [[gnu::always_inline]]
-    void construct(U* p, Args&&... args)
-    {
-        new ((void*)p) U(std::forward<Args>(args)...);
-    }
-
-    template<class U>
-    [[gnu::always_inline]]
-    void destroy(U* p) { p->~U(); }
 };
 
 template<typename T1, MemoryDomain d1, typename T2, MemoryDomain d2>
-bool operator==(const Allocator<T1, d1>& lhs, const Allocator<T2, d2>& rhs)
+constexpr bool operator==(const Allocator<T1, d1>&, const Allocator<T2, d2>&)
 {
     return d1 == d2;
 }
 
 template<typename T1, MemoryDomain d1, typename T2, MemoryDomain d2>
-bool operator!=(const Allocator<T1, d1>& lhs, const Allocator<T2, d2>& rhs)
+constexpr bool operator!=(const Allocator<T1, d1>&, const Allocator<T2, d2>&)
 {
     return d1 != d2;
 }