Drop leftover phpcq v1 files

build.default.properties

@@ -1,4 +0,0 @@
-phpcs.standard  = ${basedir}/vendor/phpcq/coding-standard/phpcs/PhpCodeQuality/ruleset.xml
-phpmd.ruleset   = ${basedir}/vendor/phpcq/coding-standard/phpmd/ruleset.xml
-phpcs.excluded  = src/Bundle/Resources/contao/languages,src/Bundle/Resources/public/js
-phpcpd.excluded = contao

build.xml

@@ -1,5 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project name="netzmacht/contao-leaflet-maps" default="build">
-    <!-- import the main build system -->
-    <import file="vendor/phpcq/phpcq/phpcq.main.xml" />
-</project>