Revert of Add isSingleComponent bool to getConstantColorComponent

src/gpu/effects/GrBicubicEffect.cpp

Index: src/gpu/effects/GrBicubicEffect.cpp
diff --git a/src/gpu/effects/GrBicubicEffect.cpp b/src/gpu/effects/GrBicubicEffect.cpp
index f5cc9d121803779473cf347308fdaabc983af52f..d73e604b04530fd062d91cd03aa6dce894bc8b3c 100644
--- a/src/gpu/effects/GrBicubicEffect.cpp
+++ b/src/gpu/effects/GrBicubicEffect.cpp
@@ -169,10 +169,9 @@
            fDomain == s.fDomain;
 }
 
-void GrBicubicEffect::onComputeInvariantOutput(InvariantOutput* inout) const {
+void GrBicubicEffect::getConstantColorComponents(GrColor* color, uint32_t* validFlags) const {
     // FIXME: Perhaps we can do better.
-    inout->fValidFlags = 0;
-    inout->fIsSingleComponent = false;
+    *validFlags = 0;
     return;
 }