Remove unused env variables started with qa prefix

lib/gitlab/qa/runtime/env.rb

@@ -36,14 +36,12 @@ module Gitlab
           'QA_SLOW_CONNECTION_LATENCY_MS' => :qa_slow_connection_latency_ms,
           'QA_SLOW_CONNECTION_THROUGHPUT_KBPS' => :qa_slow_connection_throughput_kbps,
           'QA_GENERATE_ALLURE_REPORT' => :generate_allure_report,
-          'QA_EE_ACTIVATION_CODE' => :ee_activation_code,
           'QA_EXPORT_TEST_METRICS' => :qa_export_test_metrics,
           'QA_INFLUXDB_URL' => :qa_influxdb_url,
           'QA_INFLUXDB_TOKEN' => :qa_influxdb_token,
           'QA_RUN_TYPE' => :qa_run_type,
           'QA_SKIP_PULL' => :qa_skip_pull,
           'QA_VALIDATE_RESOURCE_REUSE' => :qa_validate_resource_reuse,
-          'QA_USE_PUBLIC_IP_API' => :qa_use_public_ip_api,
           'GITLAB_API_BASE' => :api_base,
           'GITLAB_ADMIN_USERNAME' => :admin_username,
           'GITLAB_ADMIN_PASSWORD' => :admin_password,