scripted-diff: test: Rename send_message to send_without_ping

send_message only drops the bytes in a buffer and a sync is needed to
avoid intermittent test issues. Change the name of the method to make
this more apparent during review.

-BEGIN VERIFY SCRIPT-
 sed -i 's/send_message(/send_without_ping(/g' $( git grep -l 'send_message(' )
-END VERIFY SCRIPT-

test/functional/p2p_invalid_locator.py

@@ -24,14 +24,14 @@ class InvalidLocatorTest(BitcoinTestFramework):
             self.log.info('Wait for disconnect when sending {} hashes in locator'.format(MAX_LOCATOR_SZ + 1))
             exceed_max_peer = node.add_p2p_connection(P2PInterface())
             msg.locator.vHave = [int(node.getblockhash(i - 1), 16) for i in range(block_count, block_count - (MAX_LOCATOR_SZ + 1), -1)]
-            exceed_max_peer.send_message(msg)
+            exceed_max_peer.send_without_ping(msg)
             exceed_max_peer.wait_for_disconnect()
             node.disconnect_p2ps()
 
             self.log.info('Wait for response when sending {} hashes in locator'.format(MAX_LOCATOR_SZ))
             within_max_peer = node.add_p2p_connection(P2PInterface())
             msg.locator.vHave = [int(node.getblockhash(i - 1), 16) for i in range(block_count, block_count - (MAX_LOCATOR_SZ), -1)]
-            within_max_peer.send_message(msg)
+            within_max_peer.send_without_ping(msg)
             if type(msg) is msg_getheaders:
                 within_max_peer.wait_for_header(node.getbestblockhash())
             else: