validation: Remove global ::VersionBitsTip{State,SinceHeight,Statistics}

Tip: versionbitscache is currently a global so we didn't need to pass it
     in to any of ::VersionBitsTip*'s callers

src/rpc/blockchain.cpp

@@ -1232,7 +1232,7 @@ static void BIP9SoftForkDescPushBack(UniValue& softforks, const std::string &nam
     if (consensusParams.vDeployments[id].nTimeout <= 1230768000) return;
 
     UniValue bip9(UniValue::VOBJ);
-    const ThresholdState thresholdState = VersionBitsTipState(consensusParams, id);
+    const ThresholdState thresholdState = VersionBitsState(::ChainActive().Tip(), consensusParams, id, versionbitscache);
     switch (thresholdState) {
     case ThresholdState::DEFINED: bip9.pushKV("status", "defined"); break;
     case ThresholdState::STARTED: bip9.pushKV("status", "started"); break;
@@ -1246,12 +1246,12 @@ static void BIP9SoftForkDescPushBack(UniValue& softforks, const std::string &nam
     }
     bip9.pushKV("start_time", consensusParams.vDeployments[id].nStartTime);
     bip9.pushKV("timeout", consensusParams.vDeployments[id].nTimeout);
-    int64_t since_height = VersionBitsTipStateSinceHeight(consensusParams, id);
+    int64_t since_height = VersionBitsStateSinceHeight(::ChainActive().Tip(), consensusParams, id, versionbitscache);
     bip9.pushKV("since", since_height);
     if (ThresholdState::STARTED == thresholdState)
     {
         UniValue statsUV(UniValue::VOBJ);
-        BIP9Stats statsStruct = VersionBitsTipStatistics(consensusParams, id);
+        BIP9Stats statsStruct = VersionBitsStatistics(::ChainActive().Tip(), consensusParams, id);
         statsUV.pushKV("period", statsStruct.period);
         statsUV.pushKV("threshold", statsStruct.threshold);
         statsUV.pushKV("elapsed", statsStruct.elapsed);

src/validation.cpp

@@ -4997,24 +4997,6 @@ CBlockFileInfo* GetBlockFileInfo(size_t n)
     return &vinfoBlockFile.at(n);
 }
 
-ThresholdState VersionBitsTipState(const Consensus::Params& params, Consensus::DeploymentPos pos)
-{
-    LOCK(cs_main);
-    return VersionBitsState(::ChainActive().Tip(), params, pos, versionbitscache);
-}
-
-BIP9Stats VersionBitsTipStatistics(const Consensus::Params& params, Consensus::DeploymentPos pos)
-{
-    LOCK(cs_main);
-    return VersionBitsStatistics(::ChainActive().Tip(), params, pos);
-}
-
-int VersionBitsTipStateSinceHeight(const Consensus::Params& params, Consensus::DeploymentPos pos)
-{
-    LOCK(cs_main);
-    return VersionBitsStateSinceHeight(::ChainActive().Tip(), params, pos, versionbitscache);
-}
-
 static const uint64_t MEMPOOL_DUMP_VERSION = 1;
 
 bool LoadMempool(CTxMemPool& pool, CChainState& active_chainstate)

src/validation.h

@@ -226,15 +226,6 @@ struct MempoolAcceptResult {
 MempoolAcceptResult AcceptToMemoryPool(CChainState& active_chainstate, CTxMemPool& pool, const CTransactionRef& tx,
                                        bool bypass_limits, bool test_accept=false) EXCLUSIVE_LOCKS_REQUIRED(cs_main);
 
-/** Get the BIP9 state for a given deployment at the current tip. */
-ThresholdState VersionBitsTipState(const Consensus::Params& params, Consensus::DeploymentPos pos);
-
-/** Get the numerical statistics for the BIP9 state for a given deployment at the current tip. */
-BIP9Stats VersionBitsTipStatistics(const Consensus::Params& params, Consensus::DeploymentPos pos);
-
-/** Get the block height at which the BIP9 deployment switched into the state for the block building on the current tip. */
-int VersionBitsTipStateSinceHeight(const Consensus::Params& params, Consensus::DeploymentPos pos);
-
 
 /** Apply the effects of this transaction on the UTXO set represented by view */
 void UpdateCoins(const CTransaction& tx, CCoinsViewCache& inputs, int nHeight);

src/versionbits.h

@@ -79,8 +79,11 @@ struct VersionBitsCache
     void Clear();
 };
 
+/** Get the BIP9 state for a given deployment at the current tip. */
 ThresholdState VersionBitsState(const CBlockIndex* pindexPrev, const Consensus::Params& params, Consensus::DeploymentPos pos, VersionBitsCache& cache);
+/** Get the numerical statistics for the BIP9 state for a given deployment at the current tip. */
 BIP9Stats VersionBitsStatistics(const CBlockIndex* pindexPrev, const Consensus::Params& params, Consensus::DeploymentPos pos);
+/** Get the block height at which the BIP9 deployment switched into the state for the block building on the current tip. */
 int VersionBitsStateSinceHeight(const CBlockIndex* pindexPrev, const Consensus::Params& params, Consensus::DeploymentPos pos, VersionBitsCache& cache);
 uint32_t VersionBitsMask(const Consensus::Params& params, Consensus::DeploymentPos pos);