Revert "add cheatsheet.nvim"

This reverts commit e8b919723e.

lua/core/default_config.lua

@@ -66,7 +66,6 @@ M.plugins = {
       bufferline = true, -- manage and preview opened buffers
       colorizer = false, -- color RGB, HEX, CSS, NAME color codes
       comment = true, -- easily (un)comment code, language aware
-      cheatsheet = true,
       dashboard = false,
       esc_insertmode = true, -- map to <ESC> with no lag
       feline = true, -- statusline
@@ -172,12 +171,6 @@ M.mappings.plugins = {
       next_buffer = "<TAB>",
       prev_buffer = "<S-Tab>",
    },
-
-   cheatsheet = {
-      default_keys = "<leader>dk",
-      user_keys = "<leader>uk",
-   },
-
    comment = {
       toggle = "<leader>/",
    },