Remove some dead code from html/

Source/core/html/canvas/WebGLFramebuffer.cpp

Index: Source/core/html/canvas/WebGLFramebuffer.cpp
diff --git a/Source/core/html/canvas/WebGLFramebuffer.cpp b/Source/core/html/canvas/WebGLFramebuffer.cpp
index dbef20712f3ae5a3e5f3e3b093b09257aa4effef..e968a306e5d313c7c07dbe191b3f2466b1c4135b 100644
--- a/Source/core/html/canvas/WebGLFramebuffer.cpp
+++ b/Source/core/html/canvas/WebGLFramebuffer.cpp
@@ -455,28 +455,6 @@ void WebGLFramebuffer::removeAttachmentFromBoundFramebuffer(WebGLSharedObject* a
     }
 }
 
-GLsizei WebGLFramebuffer::colorBufferWidth() const
-{
-    if (!object())
-        return 0;
-    WebGLAttachment* attachment = getAttachment(GL_COLOR_ATTACHMENT0);
-    if (!attachment)
-        return 0;
-
-    return attachment->width();
-}
-
-GLsizei WebGLFramebuffer::colorBufferHeight() const
-{
-    if (!object())
-        return 0;
-    WebGLAttachment* attachment = getAttachment(GL_COLOR_ATTACHMENT0);
-    if (!attachment)
-        return 0;
-
-    return attachment->height();
-}
-
 GLenum WebGLFramebuffer::colorBufferFormat() const
 {
     if (!object())