test: remove skipped eleventy integration tests (#7221)

These have been skipped for nearly two years:
2006b6d.

This isn't providing any value.

Author: serhalp

package.json

@@ -46,7 +46,6 @@
     "test:init": "run-s test:init:*",
     "test:init:cli-help": "npm run start -- --help",
     "test:init:cli-version": "npm run start -- --version",
-    "test:init:eleventy-deps": "cd tests/integration/__fixtures__/eleventy-site && pnpm install --frozen-lockfile",
     "test:init:hugo-deps": "npm ci --prefix tests/integration/__fixtures__/hugo-site --no-audit",
     "test:init:monorepo-deps": "cd tests/integration/__fixtures__/monorepo && pnpm install --frozen-lockfile",
     "test:init:next-deps": "npm ci --prefix tests/integration/__fixtures__/next-app-without-config --no-audit && npm ci --prefix tests/integration/__fixtures__/next-app --no-audit",