neovim: fix bufferline TablineFill color

It was called twice.

home/.config/nvim/lua/colors/nord.lua

@@ -263,8 +263,8 @@ local function highlight_plugins()
     hi('GitSignsDeleteNr', c.red   , '', '', '')
 
     -- BufferLine
-    hi('BufferLineIndicatorSelected', c.black, '', '', '')
-    hi('BufferLineFill', c.black, '', '', '')
+    hi('BufferLineIndicatorSelected', c.cyan, '', '', '')
+    hi('BufferLineFill', c.grey1, c.grey1, '', '')
 
     -- Dashboard
     hi('DashboardHeader'  , c.cyan       , '', 'bold'       , '')

home/.config/nvim/lua/modules/bufferline.lua

@@ -17,14 +17,5 @@ return require('bufferline').setup {
             {filetype = 'packer', text = 'Packer', text_align = 'left'}
         },
         separator_style = 'thin'
-    },
-
-    highlights = {
-        fill = {
-            guibg = {
-                attribute = 'bg',
-                highlight = 'TabLineFill'
-            }
-        }
     }
 }