Remove declaration of obsolete runtime effect inlining API

Change-Id: I7be9a95bc190760245966c36ed088afd68108a5f
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/371316
Auto-Submit: Brian Osman <brianosman@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
diff --git a/fuzz/oss_fuzz/FuzzSkRuntimeEffect.cpp b/fuzz/oss_fuzz/FuzzSkRuntimeEffect.cpp
index deaa6bc..6aab0fd 100644
--- a/fuzz/oss_fuzz/FuzzSkRuntimeEffect.cpp
+++ b/fuzz/oss_fuzz/FuzzSkRuntimeEffect.cpp
@@ -9,7 +9,6 @@
 #include "include/core/SkPaint.h"
 #include "include/core/SkSurface.h"
 #include "include/effects/SkRuntimeEffect.h"
-#include "src/core/SkRuntimeEffectPriv.h"
 #include "src/gpu/GrShaderCaps.h"
 
 #include "fuzz/Fuzz.h"
diff --git a/src/core/SkRuntimeEffectPriv.h b/src/core/SkRuntimeEffectPriv.h
index b44d1e2..cfc018d 100644
--- a/src/core/SkRuntimeEffectPriv.h
+++ b/src/core/SkRuntimeEffectPriv.h
@@ -8,12 +8,6 @@
 #ifndef SkRuntimeEffectPriv_DEFINED
 #define SkRuntimeEffectPriv_DEFINED
 
-/*
- * Controls how much inlining is performed when compiling SkSL for SkRuntimeEffect instances.
- * See also: SkSL::Program::Settings::fInlineThreshold
- */
-void SkRuntimeEffect_SetInlineThreshold(int threshold);
-
 // This is mostly from skvm's rgb->hsl code, with some GPU-related finesse pulled from
 // GrHighContrastFilterEffect.fp, see next comment.
 constexpr char kRGB_to_HSL_sksl[] =