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_addr_relay.py

@@ -76,9 +76,9 @@ class AddrReceiver(P2PInterface):
 
     def on_version(self, message):
         self.send_version()
-        self.send_message(msg_verack())
+        self.send_without_ping(msg_verack())
         if (self.send_getaddr):
-            self.send_message(msg_getaddr())
+            self.send_without_ping(msg_getaddr())
 
     def getaddr_received(self):
         return self.message_count['getaddr'] > 0
@@ -142,7 +142,7 @@ class AddrTest(BitcoinTestFramework):
 
         msg = self.setup_addr_msg(1010)
         with self.nodes[0].assert_debug_log(['addr message size = 1010']):
-            addr_source.send_message(msg)
+            addr_source.send_without_ping(msg)
             addr_source.wait_for_disconnect()
 
         self.nodes[0].disconnect_p2ps()