templates: osmo-bsc.cfg.tmpl: remove deprecated no-op params

This patch eliminates the following deprecation warnings:

% deprecated: 'ip.access rtp-base' has no effect, RTP is handled by the MGW
Please do not use legacy config 'mgw endpoint-range' (the range can no longer be defined by the MGCP client)

Change-Id: I64f6a26a3ae347083968c12855357de10baabc59
diff --git a/src/osmo_gsm_tester/templates/osmo-bsc.cfg.tmpl b/src/osmo_gsm_tester/templates/osmo-bsc.cfg.tmpl
index 60f04cc..b40b6f4 100644
--- a/src/osmo_gsm_tester/templates/osmo-bsc.cfg.tmpl
+++ b/src/osmo_gsm_tester/templates/osmo-bsc.cfg.tmpl
@@ -116,11 +116,9 @@
  core-mobile-country-code ${bsc.net.mcc}
  core-mobile-network-code ${bsc.net.mnc}
  allow-emergency allow
- ip.access rtp-base 25000
  mgw remote-ip ${mgw.ip_address.addr}
  mgw remote-port 2427
  mgw local-ip ${bsc.ip_address.addr}
- mgw endpoint-range 1 31
  codec-list ${' '.join(bsc.net.codec_list)}
  amr-config 12_2k forbidden
  amr-config 10_2k forbidden