remove duplicate line in config.spec.js (#5761)

Author: simon-id

packages/dd-trace/test/config.spec.js

@@ -491,7 +491,6 @@ describe('Config', () => {
     process.env.DD_TRACE_SPAN_ATTRIBUTE_SCHEMA = 'v1'
     process.env.DD_TRACE_PEER_SERVICE_DEFAULTS_ENABLED = 'true'
     process.env.DD_TRACE_REMOVE_INTEGRATION_SERVICE_NAMES_ENABLED = 'true'
-    process.env.DD_TRACE_REMOVE_INTEGRATION_SERVICE_NAMES_ENABLED = true
     process.env.DD_APM_TRACING_ENABLED = 'false'
     process.env.DD_APPSEC_ENABLED = 'true'
     process.env.DD_APPSEC_MAX_STACK_TRACES = '5'