software/ors-amarisoft: enb: Remove DNS options from for-RU DHCP configuration

Those options are not needed, because we need to only provide IPv6 address to
RU, and also they are not very meaningful: in the current form we tell RU that
DNS addresses sit at RU.addr+1 and RU.addr+2, i.e. in the IP range we give to
RU and also at the addresses where no DNS server is actually running.

It was probably a thinko to add those options initially.

/cc @jhuge, @xavier_thompson, @Daetalus
/reviewed-by @lu.xu
/reviewed-on nexedi/slapos!1472

software/ors-amarisoft/buildout.hash.cfg

@@ -136,7 +136,7 @@ md5sum = f167b4be5e327b276b42267e0678f577
 
 [dnsmasq-enb.jinja2.cfg]
 filename = config/dnsmasq-enb.jinja2.cfg
-md5sum = e0c10a8dba6599342ccd655a81527371
+md5sum = c0dc073b68b93b99ff87f106e9b69d7f
 
 [ims.jinja2.cfg]
 filename = config/ims.jinja2.cfg

software/ors-amarisoft/config/dnsmasq-enb.jinja2.cfg

@@ -3,8 +3,6 @@ dhcp-leasefile={{ directory['etc'] }}/dnsmasq.leases
 port=5354
 dhcp-range=::1,::1,constructor:{{ slap_configuration.get('tap-name', '') }},ra-names,64,5m
 dhcp-host={{ slapparameter_dict.get('rrh_mac_addr', '00:0a:00:00:10:20') }},[{{ netaddr.IPAddress(slap_configuration.get('tap-ipv6-gateway', '')) }}]
-dhcp-option=option6:dns-server,[{{ netaddr.IPAddress(slap_configuration.get('tap-ipv6-gateway', '')) + 1 }}],[{{ netaddr.IPAddress(slap_configuration.get('tap-ipv6-gateway', '')) + 2 }}]
-dhcp-option=option6:domain-search,bbu.local
 # option 17 used for RU callhome
 # dhcp-option=option6:17,[{{ netaddr.IPAddress(slap_configuration.get('tap-ipv6-addr', '')) }}]
 log-queries