FS-6799 fix reading sms in index 0

src/mod/endpoints/mod_gsmopen/gsmopen_protocol.cpp

@@ -1154,7 +1154,6 @@ int gsmopen_serial_read_AT(private_t *tech_pvt, int look_for_ack, int timeout_us
 					tech_pvt->unread_sms_msg_id = pos;
 					gsmopen_sleep(1000);
 
-					if (tech_pvt->unread_sms_msg_id) {
 					char at_command[256];
 
 					if (tech_pvt->no_ucs2 == 0) {
@@ -1192,7 +1191,6 @@ int gsmopen_serial_read_AT(private_t *tech_pvt, int look_for_ack, int timeout_us
 							DEBUGA_GSMOPEN("AT+CKPD=\"EEE\" (cellphone screen back to user) didn't get OK from the phone\n", GSMOPEN_P_LOG);
 						}
 					}
-					}			//unread_msg_id
 
 				}				//CMTI well formatted