fix: remove APP_VERSION define injection that breaks strict_types

The `sed -i "2a defined('APP_VERSION')..."` inserted a line after the
blank line 2 in autoload.php, pushing declare(strict_types=1) to line 4
which PHP rejects as a fatal error. The version is already injected via
the placeholder substitution on 'unknown'/'0.0.0', so the define is redundant.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: Vitexus

debian/rules

@@ -30,8 +30,6 @@ override_dh_install:
 	    debian/csas-authorize/usr/share/csas-authorize/autoload.php
 	sed -i "s|'library'|'$(PKG_TYPE)'|g" \
 	    debian/csas-authorize/usr/share/csas-authorize/autoload.php
-	sed -i "2a defined('APP_VERSION') || define('APP_VERSION', '$(PKG_VERSION)');" \
-	    debian/csas-authorize/usr/share/csas-authorize/autoload.php
 
 override_dh_auto_test:
 	appstreamcli validate --pedantic --no-net \