Revert "[vim] Open silently"

This reverts commit c601fc6437.

plugin/fzf.vim

@@ -372,7 +372,7 @@ function! s:cmd_callback(lines) abort
     let autochdir = &autochdir
     set noautochdir
     for item in a:lines
-      execute 'silent' cmd s:escape(item)
+      execute cmd s:escape(item)
     endfor
   finally
     let &autochdir = autochdir