Make raw_hash_set::destroy_slots no longer public. It was never meant to be a…

Make raw_hash_set::destroy_slots no longer public. It was never meant to be a public member of the API.

PiperOrigin-RevId: 561061460
Change-Id: Ib804d3d3cf427ebfc9e622db9915287eb8045e26

absl/container/internal/raw_hash_set.h

@@ -1990,17 +1990,6 @@ class raw_hash_set {
     common().set_reservation_size(0);
   }
 
-  inline void destroy_slots() {
-    const size_t cap = capacity();
-    const ctrl_t* ctrl = control();
-    slot_type* slot = slot_array();
-    for (size_t i = 0; i != cap; ++i) {
-      if (IsFull(ctrl[i])) {
-        PolicyTraits::destroy(&alloc_ref(), slot + i);
-      }
-    }
-  }
-
   // This overload kicks in when the argument is an rvalue of insertable and
   // decomposable type other than init_type.
   //
@@ -2538,6 +2527,17 @@ class raw_hash_set {
     slot_type&& slot;
   };
 
+  inline void destroy_slots() {
+    const size_t cap = capacity();
+    const ctrl_t* ctrl = control();
+    slot_type* slot = slot_array();
+    for (size_t i = 0; i != cap; ++i) {
+      if (IsFull(ctrl[i])) {
+        PolicyTraits::destroy(&alloc_ref(), slot + i);
+      }
+    }
+  }
+
   // Erases, but does not destroy, the value pointed to by `it`.
   //
   // This merely updates the pertinent control byte. This can be used in