[CLEANUP] Remove the pre-rewrite core classes (#267)

These classes are not used anymore.

Fixes #266

Author: oliverklee

.github/CONTRIBUTING.md

@@ -136,7 +136,7 @@ vendor/bin/phpstan analyse -l 5 bin/ Classes/ tests/ web/
 You can also run all code style checks using one long line from a bash shell:
 
 ```bash
-find Classes/ tests/ web/ core/ -name '*.php' -print0 | xargs -0 -n 1 -P 4 php -l && php -l bin/* && vendor/bin/phpstan analyse -l 5 bin/ Classes/ tests/ web/ && vendor/bin/phpmd Classes/ text Configuration/PHPMD/rules.xml && vendor/bin/phpcs --standard=Configuration/PhpCodeSniffer/ bin/ Classes/ tests/ web/
+find Classes/ tests/ web/ -name '*.php' -print0 | xargs -0 -n 1 -P 4 php -l && php -l bin/* && vendor/bin/phpstan analyse -l 5 bin/ Classes/ tests/ web/ && vendor/bin/phpmd Classes/ text Configuration/PHPMD/rules.xml && vendor/bin/phpcs --standard=Configuration/PhpCodeSniffer/ bin/ Classes/ tests/ web/
 ```
 
 This will execute all tests except for the unit tests and the integration

.travis.yml

@@ -59,13 +59,12 @@ script:
 - >
   echo;
   echo "Linting all PHP files";
-  find Classes/ tests/ web/ core/ -name ''*.php'' -print0 | xargs -0 -n 1 -P 4 php -l; php -l bin/*;
+  find Classes/ tests/ web/ -name ''*.php'' -print0 | xargs -0 -n 1 -P 4 php -l; php -l bin/*;
 
 - >
   echo;
   echo "Running the unit tests";
   vendor/bin/phpunit -c Configuration/PHPUnit/phpunit.xml tests/Unit/;
-  vendor/bin/phpunit core/tests/;
 
 - >
   echo;

CHANGELOG.md

@@ -12,6 +12,7 @@ This project adheres to [Semantic Versioning](https://semver.org/).
 - Bidirectional m:n association Subscribers/SubscriberLists (#254)
 
 ### Changed
+- Remove the obsolete core classes (#267)
 - Adopt more of the default Symfony project structure (#265)
 
 ### Deprecated

composer.json

@@ -57,14 +57,8 @@
     },
     "autoload": {
         "psr-4": {
-            "PhpList\\PhpList4\\": "Classes/",
-
-            "phpList\\": "core/",
-            "phpList\\helper\\": "core/helper/"
-        },
-        "files": [
-            "core/helper/Shortcuts.php"
-        ]
+            "PhpList\\PhpList4\\": "Classes/"
+        }
     },
     "autoload-dev": {
         "psr-4": {