feat(LSP): Delete unnecessary settings

Third-party installed plugins are enabled by default, hence there is no
need to explicitly enable it.

Ruff plugin doesn't come with standard PyLSP, and is one (along with
pylsp-mypy) of the manually added plugins.

emacs/init.el

@@ -16,8 +16,7 @@
 (add-hook 'prog-mode-hook 'eglot-ensure)  ; Requires LSP servers in PATH
 (setq-default eglot-workspace-configuration
               '(:pylsp (:configurationSources ["flake8"]
-                        :plugins (:ruff (:enabled t)
-                                  :flake8 (:enabled t)
+                        :plugins (:flake8 (:enabled t)
                                   :pylint (:enabled t
                                            :executable "pylint")
                                   :pylsp_mypy (:overrides [t "--no-pretty"])

nvim/lua/lsp/server_settings/pylsp.lua

@@ -27,7 +27,6 @@ end)
 local pylsp_settings = {
     configurationSources = { "flake8" },  -- tool's config files to override settings from
     plugins = {
-        ruff = { enabled = true },  -- Settings come from $XDG_CONFIG_HOME/ruff/ruff.toml
         flake8 = { enabled = true },
         pylint = { enabled = true },
         pylsp_mypy = { overrides = { true, "--no-pretty" } },