[CodeQuality] Remove type addition on CompleteDynamicPropertiesRector

[samsonasik]

@Etienne-Schmitt this is to fix rectorphp/rector#7687

the dynamic property can be anything accessible from object creation, so better to remove the type, ref https://3v4l.org/tHRgE

[samsonasik]

It is also what documentation code example show to only add property with docblock, not typed:

rector-src/rules/CodeQuality/Rector/Class_/CompleteDynamicPropertiesRector.php

Lines 59 to 66 in e920ade

	/**
	* @var int
	*/
	public $value;
	public function set()
	{
	$this->value = 5;

so it make consistent with the result 👍

[samsonasik]

All checks have passed 🎉 @TomasVotruba it is ready for review.

[TomasVotruba]

Thank you, this makes sense 👍