Revert "I thought the {} does the initialization, but let’s be sure."

This reverts commit f390d17.

benchmarks/C++/src/som/dictionary.h

@@ -54,17 +54,9 @@ class Dictionary {
   uint32_t _size{0};
   uint32_t _capacity;
 
-  static Entry** createInitialized(uint32_t capacity) {
-    auto* buckets = new Entry* [capacity] {};
-    for (uint32_t i = 0; i < capacity; i += 1) {
-      buckets[i] = nullptr;
-    }
-    return buckets;
-  }
-
  public:
   explicit Dictionary(uint32_t capacity = INITIAL_CAPACITY)
-      : _buckets(createInitialized(capacity)), _capacity(capacity) {}
+      : _buckets(new Entry* [capacity] {}), _capacity(capacity) {}
 
   virtual ~Dictionary() {
     removeAll();