Revert "[css3-text]  Implement text-decoration property shorthand"

Reverting 155719 due to an assertion failure when starting
content_shell:
ASSERTION FAILED: Shorthand property id = 151 wasn't expanded at parsing time
!isExpandedShorthand(id)
../../third_party/WebKit/Source/core/css/resolver/StyleBuilderCustom.cpp(1152)
: static void WebCore::StyleBuilder::applyProperty(WebCore::CSSPropertyID,
WebCore::StyleResolverState&, WebCore::CSSValue*)

This reverts commit aa0345dd4094dbc0483ac9e40c4608fdb887f3ce.

BUG=165462
TBR=abinader

Review URL: https://codereview.chromium.org/22405003

git-svn-id: svn://svn.chromium.org/blink/trunk@155756 bbb929c8-8fbe-4397-9dbb-9b2b20218538