tests: Do not dump pending events in p2p_go_neg_init timeout=0 case

It was possible for the dump_monitor() call to drop a P2P-GO-NEG-FAILURE
event that was indicated quickly after the P2P_CONNECT command was
issued. This could result in grpform_reject test case failing to see the
expected event and fail the test due to "Rejection not reported".

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>

tests/hwsim/wpasupplicant.py

@@ -619,7 +619,6 @@ class WpaSupplicant:
             cmd = cmd + " provdisc"
         if "OK" in self.global_request(cmd):
             if timeout == 0:
-                self.dump_monitor()
                 return None
             go_neg_res = None
             ev = self.wait_global_event(["P2P-GO-NEG-SUCCESS",