Revert "[CentralCssJs] Register central wiki part of the extension"

Key 8:global.js already belongs to ext-globalcssjs-centralwiki, conflict with ext-sharedcssjs

AccountInfo was not ready.

This reverts commit 8230c776d693802e87e4a20d54ebeead4e2b7e75.

Change-Id: I2747c114bc84fae1686a11a7182a9127a7e6263d