Remove Percy from CircleCi (#23358)

.circleci/config.yml

@@ -1333,14 +1333,6 @@ workflows:
             - run-snowplow-micro
             - wait-for-databases
 
-      - fe-tests-cypress:
-          name: percy-visual-tests-<< matrix.edition >>
-          requires:
-            - build-uberjar-<< matrix.edition >>
-          cypress-group: "percy-visual-<< matrix.edition >>"
-          test-files: "./frontend/test/metabase-visual/**/*.cy.spec.js"
-          <<: *Matrix
-
       - snowplow-deps:
           requires:
             - checkout