Revert "hexchat: backtick is also a common delimiter"

caused a regression with nicks that have '`' in them

srcpkgs/hexchat/patches/url_delim.patch

@@ -20,7 +20,7 @@ index 418bb4da5..fb4962e12 100644
  /* is delimiter */
  #define is_del(c) \
 -	(c == ' ' || c == '\n' || c == '>' || c == '<' || c == 0)
-+	(c == ' ' || c == '\n' || c == '>' || c == '<' || c == 0 || c == '"' || c == '\'' || c == '`')
++	(c == ' ' || c == '\n' || c == '>' || c == '<' || c == 0 || c == '"' || c == '\'')
  
  /* force scrolling off */
  #define dontscroll(buf) (buf)->last_pixel_pos = 0x7fffffff

srcpkgs/hexchat/template

@@ -1,7 +1,7 @@
 # Template file for 'hexchat'
 pkgname=hexchat
 version=2.16.2
-revision=3
+revision=4
 build_style=meson
 configure_args="-Ddbus=enabled -Dtls=enabled
  -Dwith-perl=/usr/bin/perl -Dwith-python=python3