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_listtransactions.py

@@ -94,7 +94,6 @@ class ListTransactionsTest(BitcoinTestFramework):
             self.nodes[0].importaddress(multisig["redeemScript"], "watchonly", False, True)
             txid = self.nodes[1].sendtoaddress(multisig["address"], 0.1)
             self.generate(self.nodes[1], 1)
-            self.sync_all()
             assert_equal(len(self.nodes[0].listtransactions(label="watchonly", include_watchonly=True)), 1)
             assert_equal(len(self.nodes[0].listtransactions(dummy="watchonly", include_watchonly=True)), 1)
             assert len(self.nodes[0].listtransactions(label="watchonly", count=100, include_watchonly=False)) == 0