fix: remove london/paris example

Ideally we would want commended example, so customer can add their own OID to Custom Label mapping.

*GA TODO*: Serve this from Splunk Loopkup

Author: mayurah

lookups/custom_mib_string_table.csv

@@ -1,6 +1,4 @@
 OID,Label
-1.3.6.1.6.3.1.1.4.1.0,paris
-1.3.6.1.2.1.1.3.0,london
 1.3.6.1.4.1.6141.2.60.37.0.2,splunk-test
 1.3.6.1.4.1.8072.2.3.0.1,mycustomNET-SNMP-EXAMPLES-MIB::netSnmpExampleHeartbeatNotification
 1.3.6.1.4.1.8072.2.3.2.1,mycustomNET-SNMP-EXAMPLES-MIB::netSnmpExampleHeartbeatRate