Summary: update regex for non-ASCII parentheses
Summary: update regex for non-ASCII parentheses

The previous version created character classes of three times the same
characters each.

（（（ -> \uFF08\uFF08\uFF08
））） -> \uFF09\uFF09\uFF09

This is redundant. Since there is only one character left we don't need
the character class for that anymore.

Change-Id: I5ece83d2d5bde8cfe3afc6694c26683dddae2e78

wikimedia/mediawiki-services-mobileapps,wikimedia/mediawiki-services-mobileapps,wikimedia/mediawiki-services-mobileapps,wikimedia/mediawiki-services-mobileapps,wikimedia/mediawiki-services-mobileapps,wikimedia/mediawiki-services-mobileapps