Remove Cypress & Playwright in their entirety (#12145)

.github/workflows/element-web.yaml

@@ -3,12 +3,6 @@
 # as an artifact and run integration tests.
 name: Element Web - Build
 on:
-    # We only need the nightly run for Percy which is disabled while we're
-    # figuring out https://github.com/vector-im/wat-internal/issues/36 and
-    # https://github.com/vector-im/wat-internal/issues/56. We're hoping to
-    # turn it back on or switch to an alternative in the future.
-    # schedule:
-    #     - cron: "17 4 * * 1-5" # every weekday at 04:17 UTC
     pull_request: {}
     merge_group:
         types: [checks_requested]
@@ -82,7 +76,7 @@ jobs:
                   echo $VERSION > webapp/version
               working-directory: ./element-web
 
-            # Record the react-sdk sha so our cypress tests are from the same sha
+            # Record the react-sdk sha so our Playwright tests are from the same sha
             - name: Record react-sdk SHA
               run: |
                   git rev-parse HEAD > element-web/webapp/sha