Revert "Fixed a bug in blink.cmp causing editor freezes on WSL2 systems"

This reverts commit d04d64e678.

The fix is not needed any more after 1cc44a31f0
as mentioned in https://github.com/nvim-lua/kickstart.nvim/pull/1634#issuecomment-3601304394

init.lua

@@ -929,13 +929,6 @@ require('lazy').setup({
               return vim.tbl_contains(enabled_filetypes, filetype)
             end,
           },
-          -- On WSL2, blink.cmp may cause the editor to freeze due to a known limitation.
-          -- To address this issue, uncomment the following configuration:
-          -- cmdline = {
-          --   enabled = function()
-          --     return vim.fn.getcmdtype() ~= ':' or not vim.fn.getcmdline():match "^[%%0-9,'<>%-]*!"
-          --   end,
-          -- },
         },
       },