index, refactor: Rename ReverseBlock to RevertBlock

Semantically this is the correct name for what the function is doing.

src/index/coinstatsindex.cpp

@@ -265,7 +265,7 @@ bool CoinStatsIndex::CustomRemove(const interfaces::BlockInfo& block)
 
     if (!m_db->WriteBatch(batch)) return false;
 
-    if (!ReverseBlock(block)) {
+    if (!RevertBlock(block)) {
         return false; // failure cause logged internally
     }
 
@@ -381,8 +381,8 @@ interfaces::Chain::NotifyOptions CoinStatsIndex::CustomOptions()
     return options;
 }
 
-// Reverse a single block as part of a reorg
-bool CoinStatsIndex::ReverseBlock(const interfaces::BlockInfo& block)
+// Revert a single block as part of a reorg
+bool CoinStatsIndex::RevertBlock(const interfaces::BlockInfo& block)
 {
     std::pair<uint256, DBVal> read_out;
 

src/index/coinstatsindex.h

@@ -38,7 +38,7 @@ private:
     CAmount m_total_unspendables_scripts{0};
     CAmount m_total_unspendables_unclaimed_rewards{0};
 
-    [[nodiscard]] bool ReverseBlock(const interfaces::BlockInfo& block);
+    [[nodiscard]] bool RevertBlock(const interfaces::BlockInfo& block);
 
     bool AllowPrune() const override { return true; }