Issue 47: Removing styling of 'isearch' and 'special', as it has no effect

Signed-off-by: Julien Nicoulaud <julien.nicoulaud@gmail.com>

zsh-syntax-highlighting.zsh

@@ -33,8 +33,6 @@
 typeset -gA ZSH_HIGHLIGHT_STYLES
 ZSH_HIGHLIGHT_STYLES=(
   default                       'none'
-  isearch                       'fg=magenta,standout'
-  special                       'fg=magenta,standout'
   unknown-token                 'fg=red,bold'
   reserved-word                 'fg=yellow'
   alias                         'fg=green'
@@ -72,12 +70,6 @@ ZSH_HIGHLIGHT_TOKENS_FOLLOWED_BY_COMMANDS=(
   '|' '||' ';' '&' '&&' 'noglob' 'nocorrect' 'builtin'
 )
 
-# ZLE highlight types.
-zle_highlight=(
-  special:$ZSH_HIGHLIGHT_STYLES[special]
-  isearch:$ZSH_HIGHLIGHT_STYLES[isearch]
-)
-
 # Check if the argument is variable assignment
 _zsh_check-assign() {
     setopt localoptions extended_glob