Remove `extras` Config option since extras plugins are enabled individualy now (#673)

* Remove `extras` Global Config

* remove white space

Co-authored-by: maxime50 <>

lua/default-config.lua

@@ -15,7 +15,6 @@ O = {
   shell = "bash",
   timeoutlen = 100,
   nvim_tree_disable_netrw = 0,
-  extras = false,
   ignore_case = true,
   smart_case = true,
   lushmode = false,

utils/installer/lv-config.example.lua

@@ -14,7 +14,6 @@ O.auto_close_tree = 0
 O.wrap_lines = false
 O.timeoutlen = 100
 O.document_highlight = true
-O.extras = false
 O.leader_key = " "
 O.ignore_case = true
 O.smart_case = true