Revert "gui: Generate bech32 addresses by default (take 2, fixup)"

This reverts commit fa5a4cd813.

src/interfaces/node.h

@@ -155,9 +155,6 @@ public:
     //! Is initial block download.
     virtual bool isInitialBlockDownload() = 0;
 
-    //! Is -addresstype set.
-    virtual bool isAddressTypeSet() = 0;
-
     //! Get reindex.
     virtual bool getReindex() = 0;