scripted-diff: Replace UINT256_ONE() with uint256::ONE

-BEGIN VERIFY SCRIPT-
sed -i '/inline.* UINT256_ONE() {/,+1d' src/uint256.h
sed -i 's/UINT256_ONE()/uint256::ONE/' $(git grep -l UINT256_ONE)
-END VERIFY SCRIPT-

Author: ajtowns

src/script/interpreter.cpp

@@ -1375,7 +1375,7 @@ uint256 SignatureHash(const CScript& scriptCode, const T& txTo, unsigned int nIn
     if ((nHashType & 0x1f) == SIGHASH_SINGLE) {
         if (nIn >= txTo.vout.size()) {
             //  nOut out of range
-            return UINT256_ONE();
+            return uint256::ONE;
         }
     }
 

src/test/sighash_tests.cpp

@@ -28,7 +28,7 @@ uint256 static SignatureHashOld(CScript scriptCode, const CTransaction& txTo, un
 {
     if (nIn >= txTo.vin.size())
     {
-        return UINT256_ONE();
+        return uint256::ONE;
     }
     CMutableTransaction txTmp(txTo);
 
@@ -58,7 +58,7 @@ uint256 static SignatureHashOld(CScript scriptCode, const CTransaction& txTo, un
         unsigned int nOut = nIn;
         if (nOut >= txTmp.vout.size())
         {
-            return UINT256_ONE();
+            return uint256::ONE;
         }
         txTmp.vout.resize(nOut+1);
         for (unsigned int i = 0; i < nOut; i++)

src/uint256.h

@@ -150,6 +150,4 @@ inline uint256 uint256S(const std::string& str)
     return rv;
 }
 
-inline const uint256& UINT256_ONE() { return uint256::ONE; }
-
 #endif // BITCOIN_UINT256_H

src/wallet/scriptpubkeyman.cpp

@@ -655,7 +655,7 @@ std::unique_ptr<CKeyMetadata> LegacyScriptPubKeyMan::GetMetadata(const CTxDestin
 
 uint256 LegacyScriptPubKeyMan::GetID() const
 {
-    return UINT256_ONE();
+    return uint256::ONE;
 }
 
 /**

src/wallet/wallet.cpp

@@ -324,7 +324,7 @@ std::shared_ptr<CWallet> CreateWallet(interfaces::Chain& chain, const std::strin
     return wallet;
 }
 
-const uint256 CWalletTx::ABANDON_HASH(UINT256_ONE());
+const uint256 CWalletTx::ABANDON_HASH(uint256::ONE);
 
 /** @defgroup mapWallet
  *