## Description

- Removes the `eslint-plugin-deprecation` package which we apparently
weren't using (only present in two packages, not across the repo, and
nowhere does an eslint config extend from
`plugin:deprecation/recommended` or use the `deprecation/deprecation`
rule). We already use `import/no-deprecated` so it seems redundant
anyway.
- Adds a dependency on `"fluid-framework": "^1.4.0"`, to
`packages/service-clients/end-to-end-tests/azure-client`, since
`azure-client@^1.2.0` requires it as a peer. Currently the version being
resolved was the one from the repo, which maybe speaks well about
compatibility? But maybe we just didn't exercise it enough to notice
problems.
- Adds a dependency on `"scheduler": "^0.20.0"` to
`packages/tools/devtools/devtools-view` since it's a required peer dep
of some `@fluentui/*` packages it uses.