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/p2p_unrequested_blocks.py

@@ -114,7 +114,7 @@ class AcceptBlockTest(BitcoinTestFramework):
             if x['hash'] == block_h1f.hash:
                 assert_equal(x['status'], "headers-only")
                 tip_entry_found = True
-        assert(tip_entry_found)
+        assert tip_entry_found
         assert_raises_rpc_error(-1, "Block not found on disk", self.nodes[0].getblock, block_h1f.hash)
 
         # 4. Send another two block that build on the fork.
@@ -131,7 +131,7 @@ class AcceptBlockTest(BitcoinTestFramework):
             if x['hash'] == block_h2f.hash:
                 assert_equal(x['status'], "headers-only")
                 tip_entry_found = True
-        assert(tip_entry_found)
+        assert tip_entry_found
 
         # But this block should be accepted by node since it has equal work.
         self.nodes[0].getblock(block_h2f.hash)
@@ -150,7 +150,7 @@ class AcceptBlockTest(BitcoinTestFramework):
             if x['hash'] == block_h3.hash:
                 assert_equal(x['status'], "headers-only")
                 tip_entry_found = True
-        assert(tip_entry_found)
+        assert tip_entry_found
         self.nodes[0].getblock(block_h3.hash)
 
         # But this block should be accepted by node since it has more work.
@@ -263,7 +263,7 @@ class AcceptBlockTest(BitcoinTestFramework):
             if x['hash'] == block_292.hash:
                 assert_equal(x['status'], "headers-only")
                 tip_entry_found = True
-        assert(tip_entry_found)
+        assert tip_entry_found
         assert_raises_rpc_error(-1, "Block not found on disk", self.nodes[0].getblock, block_292.hash)
 
         test_node.send_message(msg_block(block_289f))