remove apparently unneeded declaration that is making tab labels uncentered, for tabs w/out icons.   refs #11087.
remove apparently unneeded declaration that is making tab labels uncentered, for tabs w/out icons.   refs #11087.

git-svn-id: 674a2d6b1e32e53f607eb824547723f32280967e@22074 560b804f-0ae3-0310-86f3-f6aa0a117693

redaktor/deliteful