Remove CSS_SHADERS compile-time flag.

Source/WebCore/platform/graphics/filters/FilterOperations.cpp

Index: Source/WebCore/platform/graphics/filters/FilterOperations.cpp
diff --git a/Source/WebCore/platform/graphics/filters/FilterOperations.cpp b/Source/WebCore/platform/graphics/filters/FilterOperations.cpp
index db6594394e37e41d730b907bfa20170fa067609a..b35c3d6f19e9603534c4fee3ef70dd1f0a47e761 100644
--- a/Source/WebCore/platform/graphics/filters/FilterOperations.cpp
+++ b/Source/WebCore/platform/graphics/filters/FilterOperations.cpp
@@ -87,7 +87,6 @@ bool FilterOperations::operationsMatch(const FilterOperations& other) const
     return true;
 }
 
-#if ENABLE(CSS_SHADERS)
 bool FilterOperations::hasCustomFilter() const
 {
     for (size_t i = 0; i < m_operations.size(); ++i) {
@@ -97,7 +96,6 @@ bool FilterOperations::hasCustomFilter() const
     }
     return false;
 }
-#endif
 
 bool FilterOperations::hasReferenceFilter() const
 {
@@ -144,14 +142,12 @@ FilterOutsets FilterOperations::outsets() const
             totalOutsets += outsets;
             break;
         }
-#if ENABLE(CSS_SHADERS)
         case FilterOperation::CUSTOM:
         case FilterOperation::VALIDATED_CUSTOM: {
             // FIXME: Need to include the filter margins here.
             // https://bugs.webkit.org/show_bug.cgi?id=71400
             break;
         }
-#endif
         default:
             break;
         }