Revert of GrFP can express distance vector field req., program builder declares variable for it

src/gpu/GrPipeline.cpp

Index: src/gpu/GrPipeline.cpp
diff --git a/src/gpu/GrPipeline.cpp b/src/gpu/GrPipeline.cpp
index c60a94be7eb6fd8d98dd93dff744fe1bbd8ee051..7767bf220d4175eede1b43f4b6fca14f747dfb39 100644
--- a/src/gpu/GrPipeline.cpp
+++ b/src/gpu/GrPipeline.cpp
@@ -47,9 +47,6 @@
     }
     if (builder.getAllowSRGBInputs()) {
         pipeline->fFlags |= kAllowSRGBInputs_Flag;
-    }
-    if (builder.getUsesDistanceVectorField()) {
-        pipeline->fFlags |= kUsesDistanceVectorField_Flag;
     }
     if (args.fHasStencilClip) {
         pipeline->fFlags |= kHasStencilClip_Flag;