Updated mediawiki/extensions
Project: mediawiki/extensions/UploadWizard  a0d6fb0e539342d75eb686948d44a11aa8dc4493

(bug 44421) Align buttons properly after uploading a file.

Removes unnecessary css properties which caused improper alignment.

Change-Id: Icc09b6f000714d727c15502e374b638aa5da00d6