diff --git a/src/validation.h b/src/validation.h
--- a/src/validation.h
+++ b/src/validation.h
@@ -599,10 +599,6 @@
 /** @see CChainState::FlushStateToDisk */
 enum class FlushStateMode { NONE, IF_NEEDED, PERIODIC, ALWAYS };
 
-/** Global variable that points to the active CCoinsView (protected by cs_main)
- */
-extern std::unique_ptr<CCoinsViewCache> pcoinsTip;
-
 /**
  * Maintains a tree of blocks (stored in `m_block_index`) which is consulted
  * to determine where the most-work tip is.
@@ -998,7 +994,7 @@
                       BlockValidationOptions options, bool fJustCheck = false)
         EXCLUSIVE_LOCKS_REQUIRED(cs_main);
 
-    // Block disconnection on our pcoinsTip:
+    // Apply the effects of a block disconnection on the UTXO set.
     bool DisconnectTip(BlockValidationState &state,
                        DisconnectedBlockTransactions *disconnectpool)
         EXCLUSIVE_LOCKS_REQUIRED(cs_main, m_mempool->cs);