Remove checks on SONAR_PROJECT_KEY and SONAR_PROJECT_NAME

These variables are necessarily set due to initial declarations
at the top of gitlab-ci.yml.
3 jobs for display-global-coverage in 22 minutes and 20 seconds (queued for 6 seconds)
Name Stage Failure
failed
verify:warning Verify
Skipping Git submodules setup
Checking cache for default-1...
No URL provided, cache will not be downloaded from shared cache server. Instead a local version of cache will be extracted.
Successfully extracted cache
Authenticating with credentials from job payload (GitLab Registry)
$ echo "Please, configure SonarQube!"
Please, configure SonarQube!
$ exit 1
ERROR: Job failed: exit code 1
failed
verify Verify
1254593 [INFO] Total time: 20:52 min
1254593 [INFO] Finished at: 2021-08-12T08:43:52+00:00
1255266 [INFO] Final Memory: 117M/1025M
1255266 [INFO] ------------------------------------------------------------------------
$ test -n "$SONAR_TOKEN" && mvn $MAVEN_CLI_OPTS sonar:sonar -Dsonar.login=${SONAR_TOKEN} -Dsonar.branch.name=${CI_COMMIT_REF_NAME} -Dsonar.projectKey="$SONAR_PROJECT_KEY" -Dsonar.projectName="$SONAR_PROJECT_NAME"
Uploading artifacts...
target/surefire-reports/*.xml: found 561 matching files
Uploading artifacts to coordinator... ok
id=2361 responseStatus=201 Created token=iCp7JqzE
ERROR: Job failed: exit code 1