Drop unused shader support for sample variables

Bug: skia:
Change-Id: I9e2b7da8c916703027d8dd4303ae67f4e69bcf87
Reviewed-on: https://skia-review.googlesource.com/107356
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
diff --git a/src/gpu/ccpr/GrCCTriangleShader.cpp b/src/gpu/ccpr/GrCCTriangleShader.cpp
index 6ed8758..f371b03 100644
--- a/src/gpu/ccpr/GrCCTriangleShader.cpp
+++ b/src/gpu/ccpr/GrCCTriangleShader.cpp
@@ -27,7 +27,7 @@
     }
 }
 
-void GrCCTriangleShader::onEmitFragmentCode(GrGLSLPPFragmentBuilder* f,
+void GrCCTriangleShader::onEmitFragmentCode(GrGLSLFPFragmentBuilder* f,
                                             const char* outputCoverage) const {
     f->codeAppendf("%s = %s;", outputCoverage, fCoverageTimesWind.fsIn());
 }
@@ -111,7 +111,7 @@
     code->appendf("%s = %s * .5;", OutName(fWindTimesHalf), wind);
 }
 
-void GrCCTriangleCornerShader::onEmitFragmentCode(GrGLSLPPFragmentBuilder* f,
+void GrCCTriangleCornerShader::onEmitFragmentCode(GrGLSLFPFragmentBuilder* f,
                                                   const char* outputCoverage) const {
     // By the time we reach this shader, the pixel is in the following state:
     //