Remove unused CLI options and update debian example config

src/hush_utils.h

@@ -1763,9 +1763,7 @@ void hush_args(char *argv0)
     {
         HUSH_MININGTHREADS = GetArg("-genproclimit",-1);
     }
-    DONATION_PUBKEY   = GetArg("-donation", "");
     NOTARY_PUBKEY     = GetArg("-pubkey", "");
-    HUSH_DEALERNODE   = GetArg("-dealer",0);
     HUSH_TESTNODE     = GetArg("-testnode",0);
 
     if ( strlen(NOTARY_PUBKEY.c_str()) == 66 )