plugins/theme: remove barbar config

plugins/theme/barbar.lua

@@ -1,38 +0,0 @@
--- See: https://github.com/romgrk/barbar.nvim
-require("bufferline").setup({
-	auto_hide = false,
-	closable = false,
-	clickable = false,
-	icons = false, -- TODO: add icons (required nvim-web-devicons)
-})
-
--------------------------------------------------------------------------------
--- Keybindings
-
-local opts = { silent = true }
-
-vim.keymap.set("n", "gB", "<Cmd>BufferPrevious<CR>", opts)
-vim.keymap.set("n", "gb", "<Cmd>BufferNext<CR>", opts)
-vim.keymap.set("n", "gQ", "<Cmd>BufferClose<CR>", opts)
-
--------------------------------------------------------------------------------
--- Integration with nvim-tree
-
-local nvim_tree_events = require("nvim-tree.events")
-local bufferline_state = require("bufferline.state")
-
-local function get_tree_size()
-	return require("nvim-tree.view").View.width
-end
-
-nvim_tree_events.subscribe("TreeOpen", function()
-	bufferline_state.set_offset(get_tree_size())
-end)
-
-nvim_tree_events.subscribe("Resize", function()
-	bufferline_state.set_offset(get_tree_size())
-end)
-
-nvim_tree_events.subscribe("TreeClose", function()
-	bufferline_state.set_offset(0)
-end)