Use lesspipe ad less-preprocessor

On typical linux distros `lesspipe` is already shipped as part of less.
Though on macos it isn't, but I found out that it can be isntalled via
brew. So, I have no reason to not use and can savely ditch my custom
lessfilter.

.bashrc

@@ -82,7 +82,7 @@ which zoxide > /dev/null && eval "$(zoxide init bash)" && alias cd=z
 if [ -f .local/bin/lessfilter ]
 then
   export LESS='-R'
-  export LESSOPEN='|~/.local/bin/lessfilter %s'
+  export LESSOPEN='|lesspipe %s'
 fi
 
 [ -s "$XDG_CONFIG_HOME/bash/local-config" ] && . "$XDG_CONFIG_HOME/bash/local-config"

.local/bin/lessfilter

@@ -1,22 +0,0 @@
-#!/bin/sh
-case "$1" in
-    *.awk|*.groff|*.java|*.js|*.m4|*.php|*.pl|*.pm|*.pod|*.sh|\
-    *.ad[asb]|*.asm|*.inc|*.[ch]|*.[ch]pp|*.[ch]xx|*.cc|*.hh|\
-    *.lsp|*.l|*.pas|*.p|*.xml|*.xps|*.xsl|*.axp|*.ppd|*.pov|\
-    *.diff|*.patch|*.py|*.rb|*.sql|*.ebuild|*.eclass|*.vim|\
-    .vimrc|*.yaml|*.yml|*.json|*.properties|*.html|*.scss|\
-    *.css|*.ts)
-        pygmentize -f 256 "$1";;
-
-    .bashrc|.bash_aliases|.bash_environment|.profile)
-        pygmentize -f 256 -l sh "$1";;
-
-    *)
-        if grep -q "#\!/bin/bash" "$1" 2> /dev/null; then
-            pygmentize -f 256 -l sh "$1"
-        else
-            exit 1
-        fi
-esac
-
-exit 0