Remove uses of fPruneMode in wallet code

This commit does not change behavior.

src/interfaces/chain.cpp

@@ -228,6 +228,7 @@ public:
     {
         return ::mempool.GetMinFee(gArgs.GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000);
     }
+    bool getPruneMode() override { return ::fPruneMode; }
 };
 
 } // namespace

src/interfaces/chain.h

@@ -155,6 +155,9 @@ public:
 
     //! Pool min fee.
     virtual CFeeRate mempoolMinFee() = 0;
+
+    //! Check if pruning is enabled.
+    virtual bool getPruneMode() = 0;
 };
 
 //! Interface to let node manage chain clients (wallets, or maybe tools for

src/wallet/rpcdump.cpp

@@ -157,7 +157,7 @@ UniValue importprivkey(const JSONRPCRequest& request)
         if (!request.params[2].isNull())
             fRescan = request.params[2].get_bool();
 
-        if (fRescan && fPruneMode)
+        if (fRescan && pwallet->chain().getPruneMode())
             throw JSONRPCError(RPC_WALLET_ERROR, "Rescan is disabled in pruned mode");
 
         if (fRescan && !reserver.reserve()) {
@@ -313,7 +313,7 @@ UniValue importaddress(const JSONRPCRequest& request)
     if (!request.params[2].isNull())
         fRescan = request.params[2].get_bool();
 
-    if (fRescan && fPruneMode)
+    if (fRescan && pwallet->chain().getPruneMode())
         throw JSONRPCError(RPC_WALLET_ERROR, "Rescan is disabled in pruned mode");
 
     WalletRescanReserver reserver(pwallet);
@@ -501,7 +501,7 @@ UniValue importpubkey(const JSONRPCRequest& request)
     if (!request.params[2].isNull())
         fRescan = request.params[2].get_bool();
 
-    if (fRescan && fPruneMode)
+    if (fRescan && pwallet->chain().getPruneMode())
         throw JSONRPCError(RPC_WALLET_ERROR, "Rescan is disabled in pruned mode");
 
     WalletRescanReserver reserver(pwallet);
@@ -562,7 +562,7 @@ UniValue importwallet(const JSONRPCRequest& request)
                 },
             }.ToString());
 
-    if (fPruneMode)
+    if (pwallet->chain().getPruneMode())
         throw JSONRPCError(RPC_WALLET_ERROR, "Importing wallets is disabled in pruned mode");
 
     WalletRescanReserver reserver(pwallet);

src/wallet/wallet.cpp

@@ -4334,7 +4334,7 @@ std::shared_ptr<CWallet> CWallet::CreateWalletFromFile(interfaces::Chain& chain,
         //We can't rescan beyond non-pruned blocks, stop and throw an error
         //this might happen if a user uses an old wallet within a pruned node
         // or if he ran -disablewallet for a longer time, then decided to re-enable
-        if (fPruneMode)
+        if (chain.getPruneMode())
         {
             int block_height = *tip_height;
             while (block_height > 0 && locked_chain->haveBlockOnDisk(block_height - 1) && rescan_height != block_height) {