Remove unused return value from SourceBufferPrivate::abort() and WebSourceBuffer::abort().
https://bugs.webkit.org/show_bug.cgi?id=111195

Reviewed by Adam Barth.

Source/WebCore:

No new tests. No user visible behavior changed.

* platform/graphics/SourceBufferPrivate.h:
(SourceBufferPrivate):

Source/WebKit/chromium:

* public/WebSourceBuffer.h:
(WebSourceBuffer):
* src/SourceBufferPrivateImpl.cpp:
(WebKit::SourceBufferPrivateImpl::abort):
* src/SourceBufferPrivateImpl.h:
(SourceBufferPrivateImpl):
* src/WebMediaPlayerClientImpl.cpp:
(WebSourceBufferImpl):
(WebKit::WebSourceBufferImpl::abort):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@144638 268f45cc-cd09-0410-ab3c-d52691b4dbfc