Remove uses of CheckFinalTx in wallet code

This commit does not change behavior.

src/interfaces/chain.cpp

@@ -8,6 +8,7 @@
 #include <chainparams.h>
 #include <primitives/block.h>
 #include <sync.h>
+#include <threadsafety.h>
 #include <uint256.h>
 #include <util/system.h>
 #include <validation.h>
@@ -132,6 +133,11 @@ class LockImpl : public Chain::Lock
         }
         return nullopt;
     }
+    bool checkFinalTx(const CTransaction& tx) override
+    {
+        LockAnnotation lock(::cs_main);
+        return CheckFinalTx(tx);
+    }
 };
 
 class LockingStateImpl : public LockImpl, public UniqueLock<CCriticalSection>