Remove InterpolableBool and existing use of it in SVG path interpolation

third_party/WebKit/Source/core/animation/InterpolableValue.cpp

Index: third_party/WebKit/Source/core/animation/InterpolableValue.cpp
diff --git a/third_party/WebKit/Source/core/animation/InterpolableValue.cpp b/third_party/WebKit/Source/core/animation/InterpolableValue.cpp
index 2d344a5640a21392cf6c1d72da938a3c02379808..ca3cd574201b96fb3b02d6b9d19d5318ceecc8ee 100644
--- a/third_party/WebKit/Source/core/animation/InterpolableValue.cpp
+++ b/third_party/WebKit/Source/core/animation/InterpolableValue.cpp
@@ -38,18 +38,6 @@ void InterpolableNumber::interpolate(const InterpolableValue& to,
         m_value * (1 - progress) + toNumber.m_value * progress;
 }
 
-void InterpolableBool::interpolate(const InterpolableValue& to,
-                                   const double progress,
-                                   InterpolableValue& result) const {
-  const InterpolableBool& toBool = toInterpolableBool(to);
-  InterpolableBool& resultBool = toInterpolableBool(result);
-
-  if (progress < 0.5)
-    resultBool.m_value = m_value;
-  else
-    resultBool.m_value = toBool.m_value;
-}
-
 void InterpolableList::interpolate(const InterpolableValue& to,
                                    const double progress,
                                    InterpolableValue& result) const {