Removes configuration defaults and updates lock file

Signed-off-by: George Steel <george@net-glue.co.uk>

Author: gsteel

composer-require-checker.json

@@ -1,18 +1,4 @@
 {
-    "symbol-whitelist" : [
-        "null", "true", "false",
-        "static", "self", "parent",
-        "array", "string", "int", "float", "bool", "iterable", "callable", "void", "object", "mixed", "never"
-    ],
-    "php-core-extensions" : [
-        "Core",
-        "date",
-        "pcre",
-        "Phar",
-        "Reflection",
-        "SPL",
-        "standard"
-    ],
     "scan-files" : [
         "bin/*.php"
     ]