Bug 1362000 - (followup) remove unused headers. r=me

MozReview-Commit-ID: 4SO8tdhbIHt

--HG--
extra : rebase_source : 7abc0bddf356bc705b130ea15294f8c5036f6ccf

layout/painting/FrameLayerBuilder.cpp

@@ -50,7 +50,6 @@
 #include "GeckoProfiler.h"
 #include "LayersLogging.h"
 #include "gfxPrefs.h"
-#include "nsSVGEffects.h"
 
 #include <algorithm>
 #include <functional>

layout/svg/nsSVGEffects.cpp

@@ -19,7 +19,6 @@
 #include "nsCycleCollectionParticipant.h"
 #include "SVGGeometryElement.h"
 #include "SVGUseElement.h"
-#include "mozilla/dom/SVGMaskElement.h"
 
 using namespace mozilla;
 using namespace mozilla::dom;