update netrw settings and behaviour

after/ftplugin/netrw.vim

@@ -1,4 +1 @@
-nmap <buffer> o <CR>
-nmap <buffer><silent> q <CR>:call CloseNetrw(1)<CR>
-nmap <buffer><silent> Q :call CloseNetrw(0)<CR>
-setl bufhidden=wipe
+setl bufhidden=hide

init.plugins.vim

@@ -329,34 +329,9 @@ let g:mta_filetypes = {
   let g:netrw_list_hide=netrw_gitignore#Hide()
   let g:netrw_preview = 1
   let g:netrw_winsize = 40
-  " let g:netrw_browse_split = 4
   let g:netrw_altfile = 1
   let g:netrw_mousemaps = 0
 
-  nnoremap <space>nn :call OpenNetrw()<CR>
-  " nnoremap <space>ee :e .<CR>
-  " nnoremap <space>eq :Rex<CR>
-
-  function! OpenNetrw() abort "{{{
-      Texplore
-      " setl rnu nu
-  endfunction
-  "}}}
-
-  function! CloseNetrw(keep_buffer) abort "{{{
-    if a:keep_buffer == 1
-      let l:current_buffer = bufnr("%")
-      tabclose
-      tabprevious
-      if bufexists(l:current_buffer) > 0
-        execute "buffer" l:current_buffer
-      endif
-    else
-      tabclose
-      tabprevious
-    endif
-  endfunction
-  "}}}
   "}}}
 "   #Obsession{{{
   " fork of tpope/vim-obsession