scripted-diff: Remove redundant sync_all and sync_blocks

The sync calls are redundant after a call to generate, because generate
already syncs itself.

-BEGIN VERIFY SCRIPT-
perl -0777 -pi -e 's/(generate[^\n]*\)[^\n]*)(\n|\s)+self.sync_(all|blocks)\([^\)]*\)\n/\1\n/g' $(git grep -l generate ./test)
-END VERIFY SCRIPT-

test/functional/wallet_hd.py

@@ -229,7 +229,6 @@ class WalletHDTest(BitcoinTestFramework):
             txid = self.nodes[0].sendtoaddress(addr, 1)
             origin_rpc.sendrawtransaction(self.nodes[0].gettransaction(txid)['hex'])
             self.generate(self.nodes[0], 1)
-            self.sync_blocks()
             origin_rpc.gettransaction(txid)
             assert_raises_rpc_error(-5, 'Invalid or non-wallet transaction id', restore_rpc.gettransaction, txid)
             out_of_kp_txid = txid
@@ -240,7 +239,6 @@ class WalletHDTest(BitcoinTestFramework):
             txid = self.nodes[0].sendtoaddress(last_addr, 1)
             origin_rpc.sendrawtransaction(self.nodes[0].gettransaction(txid)['hex'])
             self.generate(self.nodes[0], 1)
-            self.sync_blocks()
             origin_rpc.gettransaction(txid)
             restore_rpc.gettransaction(txid)
             assert_raises_rpc_error(-5, 'Invalid or non-wallet transaction id', restore_rpc.gettransaction, out_of_kp_txid)