Remove valgrind suppressions from bugs 50728 and 50766
Remove valgrind suppressions from bugs 50728 and 50766

The underlying cause of these errors was fixed in http://codereview.chromium.org/2873081/show .

BUG=none
TEST=valgrind tests pass

Review URL: http://codereview.chromium.org/3033044

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@54997 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser