Remove uls-select-content-language

Doesn't seem to be used.

Change-Id: I1ed94d165ccdc8d67278e8ad447322a5e637464e
Cleanup CSS

Removed overqualified and repeating selectors and fixed whitespace.

Change-Id: I139a892a577351167c9193c24b3684680f2d0e97
Merge "Remove uls-select-content-language"