IBX-1776: Removed "Change password" item from user menu

[adamwojs]

Question	Answer
Tickets	https://issues.ibexa.co/browse/IBX-1776
Bug fix?	no
New feature?	no
BC breaks?	YES
Tests pass?	yes
Doc needed?	yes
License	GPL-2.0

Checklist:

• Update Behats
• Coding standards ($ composer fix-cs)
• Ready for Code Review

[micszo]

@mnocon please have a look at edf8306.

[mnocon]

We should also remove the step that's no longer valid:

admin-ui/src/lib/Behat/BrowserContext/NavigationContext.php

Lines 80 to 87 in a8d4c3f

	/**
	* @Given I go to change my password
	* @Given I go to change my password in user preferences
	*/
	public function iGoToChangeMyPassword()
	{
	$this->upperMenu->chooseFromUserDropdown('Change password');
	}