[inst/xmlrpc] Remove unused xmlrpc instrumentation
[inst/xmlrpc] Remove unused xmlrpc instrumentation

We should just instrument net/http

appneta/ruby-traceview,appneta/ruby-traceview,tlunter/oboe-ruby,tlunter/oboe-ruby,tlunter/oboe-ruby,boyang-li/oboe-ruby,boyang-li/oboe-ruby,appneta/ruby-traceview,boyang-li/oboe-ruby,boyang-li/oboe-ruby,appneta/ruby-traceview,tlunter/oboe-ruby