refactor: Remove unused EnsureChainman

src/init.cpp

@@ -50,6 +50,7 @@
 #include <txmempool.h>
 #include <ui_interface.h>
 #include <util/asmap.h>
+#include <util/check.h>
 #include <util/moneystr.h>
 #include <util/string.h>
 #include <util/system.h>
@@ -1377,9 +1378,9 @@ bool AppInitMain(const util::Ref& context, NodeContext& node)
     node.mempool = &::mempool;
     assert(!node.chainman);
     node.chainman = &g_chainman;
-    ChainstateManager& chainman = EnsureChainman(node);
+    ChainstateManager& chainman = *Assert(node.chainman);
 
-    node.peer_logic.reset(new PeerLogicValidation(node.connman.get(), node.banman.get(), *node.scheduler, *node.chainman, *node.mempool));
+    node.peer_logic.reset(new PeerLogicValidation(node.connman.get(), node.banman.get(), *node.scheduler, chainman, *node.mempool));
     RegisterValidationInterface(node.peer_logic.get());
 
     // sanitize comments per BIP-0014, format user agent and check total size

src/node/context.h

@@ -49,10 +49,4 @@ struct NodeContext {
     ~NodeContext();
 };
 
-inline ChainstateManager& EnsureChainman(const NodeContext& node)
-{
-    assert(node.chainman);
-    return *node.chainman;
-}
-
 #endif // BITCOIN_NODE_CONTEXT_H

src/rpc/blockchain.cpp

@@ -75,7 +75,10 @@ CTxMemPool& EnsureMemPool(const util::Ref& context)
 ChainstateManager& EnsureChainman(const util::Ref& context)
 {
     NodeContext& node = EnsureNodeContext(context);
-    return EnsureChainman(node);
+    if (!node.chainman) {
+        throw JSONRPCError(RPC_INTERNAL_ERROR, "Node chainman not found");
+    }
+    return *node.chainman;
 }
 
 /* Calculate the difficulty for a given block index.