Removes CIRCLE_CI_TOKEN export (#8884)

Author: bric3

.gitlab/benchmarks.yml

@@ -14,7 +14,6 @@
     - when: on_success
   script:
     - export ARTIFACTS_DIR="$(pwd)/reports" && mkdir -p "${ARTIFACTS_DIR}"
-    - export CIRCLE_CI_TOKEN=$(aws ssm get-parameter --region us-east-1 --name ci.dd-trace-java.circleci_token --with-decryption --query "Parameter.Value" --out text)
     - git config --global url."https://gitlab-ci-token:${CI_JOB_TOKEN}@gitlab.ddbuild.io/DataDog/".insteadOf "https://github.com/DataDog/"
     - git clone --branch dd-trace-java/tracer-benchmarks https://github.com/DataDog/benchmarking-platform.git /platform && cd /platform
   artifacts: