Drop useless phpdoc, already covered by PHP

[lyrixx]

No description provided.

[lyrixx]

cc @Crell

[Crell]

I agree the docblocks no longer offer any value. However, the docblocks were included in the original PSR text. There was a formal process to add the language types years later, once language types existed. 😄 I'm hesitant to remove the docblocks now when they are still specified in the spec.

[vdelau]

@Seldaek is the editor for the related PSR

[Seldaek]

As far I'm concerned I'd say ship it without vote etc.. It's an obvious cleanup of redundant info. If that's not ok per the rules someone will have to deal with a vote etc sorry i have no capacity atm