Allow absolute paths to be used by removing unneeded branch that checks for '/'

[dsully]

This change allows this config to work:

"workspace": {
  "library": [
    "/opt/homebrew/opt/neovim/share/nvim/runtime",
    "/opt/homebrew/opt/lua-language-server/libexec/meta/3rd/luassert/library",
    "/opt/homebrew/opt/lua-language-server/libexec/meta/3rd/luv/library",
    "/Users/dsully/.local/share/nvim/lazy/lazy.nvim/lua",
    "/Users/dsully/.local/share/nvim/lazy/snacks.nvim/lua",
    "/Users/dsully/.local/share/nvim/lazy/which-key.nvim/lua"
  ]
}