refactor!: remove 'async' library (#287)

.github/workflows/ci.yml

@@ -29,14 +29,6 @@ jobs:
           token: ${{ secrets.GITHUB_TOKEN }}
           version: latest
           args: --config-path .stylua.toml ./lua ./spec
-      - name: Add async.lua
-        if: ${{ github.ref != 'refs/heads/main' }}
-        run: |
-          echo "pwd"
-          echo $PWD
-          git clone --depth=1 https://github.com/lewis6991/async.nvim.git ~/.async
-          cp ~/.async/lua/async.lua ./lua/commons/async.lua
-          sed -i '1 i\---@diagnostic disable: luadoc-miss-module-name, undefined-doc-name' ./lua/commons/async.lua
       - name: Add color.hsl.lua
         if: ${{ github.ref != 'refs/heads/main' }}
         run: |

README.md

@@ -29,7 +29,6 @@ Please check [documentation](https://linrongbin16.github.io/commons.nvim) for mo
 
 ## Embedded Libraries
 
-- [async.lua](https://github.com/lewis6991/async.nvim): Small aync library for Neovim plugins.
 - [colors.lua](http://sputnik.freewisdom.org/lib/colors/): HSL Color Theory Computation in Lua.
 
 ## Contribute