scripted-diff: test: Remove brackets after assert

-BEGIN VERIFY SCRIPT-
sed -i --regexp-extended -e 's/assert ?\((.+)\)(( )*)?(#.*)?$/assert \1\3\3\4/g' $(git grep -l --extended-regexp 'assert ?\(' test)
-END VERIFY SCRIPT-

test/functional/feature_pruning.py

@@ -151,7 +151,7 @@ class PruneTest(BitcoinTestFramework):
             self.nodes[1].invalidateblock(curhash)
             curhash = self.nodes[1].getblockhash(invalidheight - 1)
 
-        assert(self.nodes[1].getblockcount() == invalidheight - 1)
+        assert self.nodes[1].getblockcount() == invalidheight - 1
         self.log.info("New best height: %d" % self.nodes[1].getblockcount())
 
         # Reboot node1 to clear those giant tx's from mempool
@@ -219,17 +219,17 @@ class PruneTest(BitcoinTestFramework):
             blocks_to_mine = first_reorg_height + 1 - self.mainchainheight
             self.log.info("Rewind node 0 to prev main chain to mine longer chain to trigger redownload. Blocks needed: %d" % blocks_to_mine)
             self.nodes[0].invalidateblock(curchainhash)
-            assert(self.nodes[0].getblockcount() == self.mainchainheight)
-            assert(self.nodes[0].getbestblockhash() == self.mainchainhash2)
+            assert self.nodes[0].getblockcount() == self.mainchainheight
+            assert self.nodes[0].getbestblockhash() == self.mainchainhash2
             goalbesthash = self.nodes[0].generate(blocks_to_mine)[-1]
             goalbestheight = first_reorg_height + 1
 
         self.log.info("Verify node 2 reorged back to the main chain, some blocks of which it had to redownload")
         # Wait for Node 2 to reorg to proper height
         wait_until(lambda: self.nodes[2].getblockcount() >= goalbestheight, timeout=900)
-        assert(self.nodes[2].getbestblockhash() == goalbesthash)
+        assert self.nodes[2].getbestblockhash() == goalbesthash
         # Verify we can now have the data for a block previously pruned
-        assert(self.nodes[2].getblock(self.forkhash)["height"] == self.forkheight)
+        assert self.nodes[2].getblock(self.forkhash)["height"] == self.forkheight
 
     def manual_test(self, node_number, use_timestamp):
         # at this point, node has 995 blocks and has not yet run in prune mode