Remove Karma

Removes deps, configs, scripts, build rules, and docuementation
common-test-setup-karma.ts will be merged into common-test-setup.ts
later, since it is not clear what needs to be kept.

Release-Notes: skip
Change-Id: I46f58584aa5443c51af0ebebf86a45442982f1cc
diff --git a/package.json b/package.json
index 90483ff..d01a3b0 100644
--- a/package.json
+++ b/package.json
@@ -44,12 +44,7 @@
     "safe_bazelisk": "if which bazelisk >/dev/null; then bazel_bin=bazelisk; else bazel_bin=bazel; fi && $bazel_bin",
     "eslint": "npm run safe_bazelisk test polygerrit-ui/app:lint_test",
     "eslintfix": "npm run safe_bazelisk run polygerrit-ui/app:lint_bin -- -- --fix $(pwd)/polygerrit-ui/app",
-    "litlint": "npm run safe_bazelisk run polygerrit-ui/app:lit_analysis",
-    "test:karma": "npm run safe_bazelisk test //polygerrit-ui:karma_test -- --test_verbose_timeout_warnings --test_output=all",
-    "test:karma:single": "npm run compile:local && npm run safe_bazelisk run //polygerrit-ui:karma_bin -- -- start $(pwd)/polygerrit-ui/karma.conf.js --root '.ts-out/polygerrit-ui/app/' --test-files",
-    "test:karma:watch": "npm run safe_bazelisk run //polygerrit-ui:karma_bin -- -- start $(pwd)/polygerrit-ui/karma.conf.js --root '.ts-out/polygerrit-ui/app/' --auto-watch --no-single-run --test-files",
-    "test:karma:debug": "npm run compile:local && npm run safe_bazelisk run //polygerrit-ui:karma_bin -- -- start $(pwd)/polygerrit-ui/karma.conf.js --root '.ts-out/polygerrit-ui/app/' --browsers ChromeDev --no-single-run --test-files",
-    "karma:watch": "npm run compile:local && run-p -r compile:watch \"karma:test:watch -- {*}\" --"
+    "litlint": "npm run safe_bazelisk run polygerrit-ui/app:lit_analysis"
   },
   "repository": {
     "type": "git",