Queue: Correctly pass args to enqueue

Problem:
- Using regular functions rather than function templates results in
  the arguments not being deduced. This then requires the same
  function to be written multiple times and for `move` to be used
  rather than `forward`.

Solution:
- Collapse multiple function overloads to a single function template
  with a deduced argument. This allows the argument to be a forwarding
  reference and bind to either an l-value or r-value and forward the
  value.

AK/Queue.h

@@ -41,19 +41,15 @@ public:
     size_t size() const { return m_size; }
     bool is_empty() const { return m_size == 0; }
 
-    void enqueue(T&& value)
+    template<typename U = T>
+    void enqueue(U&& value)
     {
         if (m_segments.is_empty() || m_segments.last()->size() >= segment_size)
             m_segments.append(make<Vector<T, segment_size>>());
-        m_segments.last()->append(move(value));
+        m_segments.last()->append(forward<U>(value));
         ++m_size;
     }
 
-    void enqueue(const T& value)
-    {
-        enqueue(T(value));
-    }
-
     T dequeue()
     {
         ASSERT(!is_empty());