remove unused use statements

[samsonasik]

I just realized that php-cs-fixer support removing unused use statement ^^

[weierophinney]

@samsonasik There are test failures in all PHP versions at this point; it looks like the script removed code from the Zend\Code test suite that was necessary.

[samsonasik]

@weierophinney fixed ;)

[Maks3w]

@samsonasik Please add the necessary changes to the Travis script for automatize this.

https://github.com/zendframework/zf2/blob/master/bin/check-cs.sh

[samsonasik]

@Maks3w done, I have updated bin/check-cs.sh , and I added exclude tests/ZendTest/Code at tests/.php_cs for checking because of some use statements are necessary as @weierophinney said.

[samsonasik]

btw, I curious when adding exclude tests/ZendTest/Code at tests/.php_cs is causing ZendTest/Code is not tested anymore for other case ( trailing_space, function_declaration, etc), I will test it to add failure test on it.

[samsonasik]

@weierophinney @Maks3w I have tested excluding tests/ZendTest/Code at tests/.php_cs but it cause that folder not tested anymore for other cases ( trailing_spaces, etc). So, I propose to only check --fixers=unused_use only for library folder, how ?

[DASPRiD]

IDEs also make use of the use statements in doc blocks. Make sure that the removed aliases were not used in these.

[samsonasik]

@DASPRiD I already check that, all aliases for unused use is not used at docblock. Let me know if I missed something, thanks.

[Maks3w]

I'll review this manually sortly.