eliminated GrGLSLExpr

Now that skslc performs all of the optimizations (and then some) that
GrGLSLExpr is responsible for, it's just extra work for no benefit.

Bug: skia:
Change-Id: I40b0629e00a33873ed9fc6c0a9f41d8350221f9a
Reviewed-on: https://skia-review.googlesource.com/14560
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>

1 files changed, 0 insertions, 12 deletions

diff --git a/src/gpu/glsl/GrGLSL.cpp b/src/gpu/glsl/GrGLSL.cpp
index d54ddee0d6..76ffb826a7 100644
--- a/src/gpu/glsl/GrGLSL.cpp
+++ b/src/gpu/glsl/GrGLSL.cpp
@@ -45,15 +45,3 @@ void GrGLSLAppendDefaultFloatPrecisionDeclaration(GrSLPrecision p,
         }
     }
 }
-
-void GrGLSLMulVarBy4f(SkString* outAppend, const char* vec4VarName, const GrGLSLExpr4& mulFactor) {
-    if (mulFactor.isOnes()) {
-        *outAppend = SkString();
-    }
-
-    if (mulFactor.isZeros()) {
-        outAppend->appendf("%s = vec4(0);", vec4VarName);
-    } else {
-        outAppend->appendf("%s *= %s;", vec4VarName, mulFactor.c_str());
-    }
-}