[nvim] removed unused border variable

nvim/lua/lsp-config.lua

@@ -49,18 +49,6 @@ local on_attach = function(client, bufnr)
   end, bufopts)
 end
 
--- Specify the border characters
-local border = {
-  { '┌', 'FloatBorder' },
-  { '─', 'FloatBorder' },
-  { '┐', 'FloatBorder' },
-  { '│', 'FloatBorder' },
-  { '┘', 'FloatBorder' },
-  { '─', 'FloatBorder' },
-  { '└', 'FloatBorder' },
-  { '│', 'FloatBorder' },
-}
-
 -- Add the border on hover and on signature help popup window
 local handlers = {
   ['textDocument/hover'] = vim.lsp.with(vim.lsp.handlers.hover, { border = "rounded" }),