Fix some problems reported by clang static analyzer

Source/core/rendering/svg/SVGInlineTextBox.cpp

Index: Source/core/rendering/svg/SVGInlineTextBox.cpp
diff --git a/Source/core/rendering/svg/SVGInlineTextBox.cpp b/Source/core/rendering/svg/SVGInlineTextBox.cpp
index 6c593827328184060c621e77e68905e85d71390c..e6a27f6de3ca698bcb5d2bb854b99a34f2e3c59f 100644
--- a/Source/core/rendering/svg/SVGInlineTextBox.cpp
+++ b/Source/core/rendering/svg/SVGInlineTextBox.cpp
@@ -218,13 +218,6 @@ void SVGInlineTextBox::paintSelectionBackground(PaintInfo& paintInfo)
     RenderStyle* style = parentRenderer->style();
     ASSERT(style);
 
-    RenderStyle* selectionStyle = style;
-    if (hasSelection) {
-        selectionStyle = parentRenderer->getCachedPseudoStyle(SELECTION);
-        if (!selectionStyle)
-            selectionStyle = style;
-    }
-
     int startPosition, endPosition;
     selectionStartEnd(startPosition, endPosition);