Move -blocksonly parameter interaction to the new ParameterInteraction() function

src/init.cpp

@@ -743,6 +743,16 @@ void InitParameterInteraction()
         if (SoftSetBoolArg("-rescan", true))
             LogPrintf("%s: parameter interaction: -zapwallettxes=<mode> -> setting -rescan=1\n", __func__);
     }
+
+    // disable walletbroadcast and whitelistalwaysrelay in blocksonly mode
+    if (GetBoolArg("-blocksonly", DEFAULT_BLOCKSONLY)) {
+        if (SoftSetBoolArg("-whitelistalwaysrelay", false))
+            LogPrintf("%s: parameter interaction: -blocksonly=1 -> setting -whitelistalwaysrelay=0\n", __func__);
+#ifdef ENABLE_WALLET
+        if (SoftSetBoolArg("-walletbroadcast", false))
+            LogPrintf("%s: parameter interaction: -blocksonly=1 -> setting -walletbroadcast=0\n", __func__);
+#endif
+    }
 }
 
 /** Initialize bitcoin.