Remove debug output formatting from GlyphPageTreeNode and friends

Source/platform/fonts/GlyphPageTreeNode.h

Index: Source/platform/fonts/GlyphPageTreeNode.h
diff --git a/Source/platform/fonts/GlyphPageTreeNode.h b/Source/platform/fonts/GlyphPageTreeNode.h
index 9b644a9822cf0e7f4ec8ac1b6aba1f64925595c5..c5410625360a176b737a28eb3536c82502b05ec5 100644
--- a/Source/platform/fonts/GlyphPageTreeNode.h
+++ b/Source/platform/fonts/GlyphPageTreeNode.h
@@ -37,11 +37,6 @@
 #include "wtf/RefCounted.h"
 #include "wtf/unicode/Unicode.h"
 
-#ifndef NDEBUG
-void PLATFORM_EXPORT showGlyphPageTrees();
-void PLATFORM_EXPORT showGlyphPageTree(unsigned pageNumber);
-#endif
-
 namespace blink {
 
 class FontData;
@@ -131,10 +126,6 @@ private:
 #if ENABLE(ASSERT)
     unsigned m_pageNumber;
 #endif
-#ifndef NDEBUG
-    friend void ::showGlyphPageTrees();
-    friend void ::showGlyphPageTree(unsigned pageNumber);
-#endif
 };
 
 } // namespace blink