Remove two unused LSan suppressions.

Remove suppressions for false positives / intentional leaks in Blink code. They
have since been annotated with in-code annotations.

BUG=121729, 242672
TBR=glider@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/292663004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@271709 0039d316-1c4b-4281-b951-d872f2087c98

tools/lsan/suppressions.txt

@@ -9,17 +9,9 @@ leak:libfontconfig
 # Leaks in Nvidia's libGL.
 leak:libGL.so
 
-# False positive in Blink due to bit twiddling on pointers. http://crbug.com/242672
-# TODO(earthdok): Annotate.
-leak:WTF::BitVector::resizeOutOfLine
-
 # A small string is leaked here (57 bytes per process). http://crbug.com/46571#c9
 leak:WebCore::V8GCController::collectGarbage
 
-# Intentional leak in Blink. http://crbug.com/121729
-# TODO(earthdok): annotate it.
-leak:WebCore::parseUASheet
-
 # http://crbug.com/270180
 leak:net::ProxyResolverV8::Context::ResolveProxy