remove supports4f flag for colorfilters

src/core/SkColorFilterShader.cpp

Index: src/core/SkColorFilterShader.cpp
diff --git a/src/core/SkColorFilterShader.cpp b/src/core/SkColorFilterShader.cpp
index 81123f6dffc8425da3d6a122bb6b7e72bbd1958e..618bf7191ef56ba8319094947114a75fe2443826 100644
--- a/src/core/SkColorFilterShader.cpp
+++ b/src/core/SkColorFilterShader.cpp
@@ -49,9 +49,6 @@ uint32_t SkColorFilterShader::FilterShaderContext::getFlags() const {
     if (!(filterF & SkColorFilter::kAlphaUnchanged_Flag)) {
         shaderF &= ~SkShader::kOpaqueAlpha_Flag;
     }
-    if (!(filterF & SkColorFilter::kSupports4f_Flag)) {
-        shaderF &= ~SkShader::kSupports4f_Flag;
-    }
     return shaderF;
 }