Revert "Fixed set conceal options (#186)"

This reverts commit 273ad7b.

Author: Yggdroot

after/plugin/indentLine.vim

@@ -139,8 +139,6 @@ endfunction
 "{{{1 function! s:Setup()
 function! s:Setup()
     if index(g:indentLine_fileTypeExclude, &filetype) isnot -1
-        let &l:concealcursor = ""
-        let &l:conceallevel = "0"
         return
     endif
 
@@ -200,7 +198,7 @@ endfunction
 "{{{1 augroup indentLine
 augroup indentLine
     autocmd!
-    autocmd BufWinEnter,BufEnter * call <SID>Setup()
+    autocmd BufWinEnter * call <SID>Setup()
     autocmd User * if exists("b:indentLine_enabled") && b:indentLine_enabled ||
                     \ exists("b:indentLine_leadingSpaceEnabled") && b:indentLine_leadingSpaceEnabled |
                     \ call <SID>Setup() |