…er needed

PHPCS 3.12.2 fixed a PHP tokenization inconsistency directly related to what this sniff is detecting.

> - Tokenizer/PHP: a PHP open tag at the very end of a file will now always be tokenized as T_OPEN_TAG, independently of the PHP version.
>     Previously, a PHP open tag at the end of a file was not tokenized as an open tag on PHP < 7.4 and the tokenization would depend on the short_open_tag setting.

As the PHPCS tokenization will now be the same PHP cross-version, we can remove the work-arounds which were in place to accommodate the previous difference in tokenization.

Ref:
* PHPCSStandards/PHP_CodeSniffer 937

…ial exception

The following PHPCSUtils 1.1.0 change was causing the tests to fail:

> `UseStatements::getType()` will now handle unfinished closure `use` statements (parse errors) more consistently and return `'closure'` for those cases.

This change means that during live coding, in specific cases where a closure declaration is incomplete, the `UseStatements::getType()` method will still correctly detect the `use` as a closure `use`.
However, the `FunctionDeclarations::getParameters()` method will not handle such incomplete code and will throw an exception as the parameters imported via the closure `use` cannot be reliably retrieved.

Fixed now by catching this potential exception.