vim: update dracula/vim

With the merge of dracula/vim#321, my hacks in
after are no longer necessary and can be moved where they belong:
dracula customization. This is better than using g:colors_name directly
in the removed conditionals because the variable is absent during syntax
enable in my vimrc. We also remove the redundant
bk#dracula#should_abort. (Technically the dracula pro changes haven't
been released yet, but I have access to them.)

links/vim/after/syntax/clojure.vim

@@ -4,7 +4,3 @@ syn keyword clojureFunc comp conceal cchar=←
 
 syn keyword clojureMacro and conceal cchar=∧
 syn keyword clojureMacro or conceal cchar=∨
-
-if ! bk#dracula#should_abort('clojure')
-  hi link clojureParen DraculaSubtle
-endif

links/vim/after/syntax/lisp.vim

@@ -14,7 +14,3 @@ syn keyword lispFunc and conceal cchar=∧
 syn keyword lispFunc or conceal cchar=∨
 syn keyword lispFunc nil conceal cchar=∅
 syn keyword lispFunc cons conceal cchar=.
-
-if ! bk#dracula#should_abort('lisp')
-  hi link lispParen DraculaSubtle
-endif

links/vim/after/syntax/racket.vim

@@ -5,7 +5,3 @@ syntax keyword racketFunc compose1 conceal cchar=←
 
 syntax keyword racketSyntax and conceal cchar=∧
 syntax keyword racketSyntax or conceal cchar=∨
-
-if ! bk#dracula#should_abort('racket')
-  highlight link racketParen DraculaSubtle
-endif

links/vim/vimrc

@@ -238,7 +238,7 @@ command SLShort call s:status_line('short')
 
 SLShort
 
-function! s:set_statusline_colors_to_dracula() abort
+function! s:set_colors_to_dracula() abort
   " Override statusline
   hi clear StatusLine
   hi clear StatusLineNC
@@ -254,9 +254,16 @@ function! s:set_statusline_colors_to_dracula() abort
   hi link User3 DraculaCyan
   hi link User4 DraculaRed
   hi link User5 DraculaOrange
+
+  highlight link racketParen DraculaSubtle
+  highlight link clojureParen DraculaSubtle
+  highlight link lispParen DraculaSubtle
+  highlight link infoParen DraculaSubtle
+  highlight link schemeParentheses DraculaSubtle
+  highlight link scribbleParen DraculaSubtle
 endfunction
 
-function! s:set_statusline_colors_to_flattened() abort
+function! s:set_colors_to_flattened() abort
   " Override statusline
   highlight clear StatusLine
   highlight clear StatusLineNC
@@ -277,8 +284,8 @@ endfunction
 if has('autocmd')
   augroup status_colors
     autocmd!
-    autocmd ColorScheme dracula* call s:set_statusline_colors_to_dracula()
-    autocmd ColorScheme flattened_light call s:set_statusline_colors_to_flattened()
+    autocmd ColorScheme dracula* call s:set_colors_to_dracula()
+    autocmd ColorScheme flattened_light call s:set_colors_to_flattened()
   augroup end
 endif
 " }}}