pkg: remove tokenizer, was used for style checker

The style checking is done in the build system, so there's no need
to keep this here.  A more dynamic way needs to be devised at some
point that allows plugging PHP modules into the code, but it's not
overly important.

Suggested by: @fabianfrz

Makefile

@@ -93,7 +93,6 @@ CORE_DEPENDS?=		apinger \
 			php56-simplexml \
 			php56-sockets \
 			php56-sqlite3 \
-			php56-tokenizer \
 			php56-xml \
 			php56-zlib \
 			py27-Jinja2 \

src/etc/rc.php_ini_setup

@@ -71,7 +71,6 @@ PHPMODULES="$PHPMODULES bcmath"
 PHPMODULES="$PHPMODULES filter"
 # OPNsense
 PHPMODULES="$PHPMODULES phalcon"
-PHPMODULES="$PHPMODULES tokenizer"
 
 # Clear the .ini file to make sure we are clean
 rm -f /usr/local/etc/php/extensions.ini