CI: Drop SonarQube and Schutzbot in favor of Snyk (HMS-3696)

Snyk is now being used for code analysis in favor of Sonarqube. This
commit drops Sonarqube. Schutzbot was only neccessary for running
SonarQube, so it has also been dropped.

schutzbot/update_github_status.sh

@@ -1,29 +0,0 @@
-#!/bin/bash
-
-if [[ $1 == "start" ]]; then
-  GITHUB_NEW_STATE="pending"
-  GITHUB_NEW_DESC="I'm currently testing this commit, be patient."
-elif [[ $1 == "finish" ]]; then
-  GITHUB_NEW_STATE="success"
-  GITHUB_NEW_DESC="I like this commit!"
-elif [[ $1 == "update" ]]; then
-  if [[ $CI_JOB_STATUS == "canceled" ]]; then
-    GITHUB_NEW_STATE="failure"
-    GITHUB_NEW_DESC="Someone told me to cancel this test run."
-  elif [[ $CI_JOB_STATUS == "failed" ]]; then
-    GITHUB_NEW_STATE="failure"
-    GITHUB_NEW_DESC="I'm sorry, something is odd about this commit."
-  else
-    exit 0
-  fi
-else
-  echo "unknown command"
-  exit 1
-fi
-
-curl \
-    -u "${SCHUTZBOT_LOGIN}" \
-    -X POST \
-    -H "Accept: application/vnd.github.v3+json" \
-    "https://api.github.com/repos/RedHatInsights/image-builder-frontend/statuses/${CI_COMMIT_SHA}" \
-    -d '{"state":"'"${GITHUB_NEW_STATE}"'", "description": "'"${GITHUB_NEW_DESC}"'", "context": "Schutzbot on GitLab", "target_url": "'"${CI_PIPELINE_URL}"'"}'