Remove redundant check for CSS_DEG type, isAngle() is more general

Source/core/animation/DoubleStyleInterpolation.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "core/animation/DoubleStyleInterpolation.h"
 
 #include "core/css/CSSCalculationValue.h"
 #include "core/css/resolver/StyleBuilder.h"
 
@@ skipping 84 matching lines @@
     for (int i = 0; i < len; i++) {
         const CSSValue* item = list.item(i);
         if (!item->isPrimitiveValue())
             return false;
         const CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(item);
         if (primitiveValue->getValueID() == CSSValueAuto) {
             *rotationType = MotionRotationAuto;
         } else if (primitiveValue->getValueID() == CSSValueReverse) {
             *rotationType = MotionRotationAuto;
             *rotation += 180;
-        } else if (primitiveValue->isAngle() || primitiveValue->primitiveType() == CSSPrimitiveValue::CSS_DEG) {
+        } else if (primitiveValue->isAngle()) {
             *rotation += primitiveValue->computeDegrees();
         } else {
             return false;
         }
     }
     return true;
 }
 
 } // namespace
 
@@ skipping 26 matching lines @@
         || startRotationType != endRotationType)
         return nullptr;
 
     return adoptRefWillBeNoop(new DoubleStyleInterpolation(
         motionRotationToInterpolableValue(start),
         motionRotationToInterpolableValue(end),
         id, true, InterpolationRange::RangeAll, startRotationType == MotionRotationAuto));
 }
 
 }