Remove wrapclass from parser cache key

Remove wrapclass from parser cache key

This will result in an exception from WikiPage::getParserOutput() if
anything was missed.

This also hard-deprecates ParserOptions::setWrapOutputClass( false )

Bug: T181846
Change-Id: Ica541e1f6b52f5eec6d28cff60ba64bf525258c7
Depends-On: Ie5d6c5ce34c05b8fe2353d3bb36b2a3a4166ec4b
Depends-On: Ibfaefde2f3811151ec712554cbc9cf2415ed017f
Depends-On: I55048bbae5d4d2d0c79c241c1784448b82db3bb4
Depends-On: I23a26ba0dfbe83007cd40e97d71a2139a5ecddc7
Depends-On: Ibc013a41f4a463f4014fbbce7ce27f8690161728
Depends-On: Ie936dff918dc0869503a924298b4580402038b52