Some simple optimizations for improving GrAtlasTextContext perf

src/gpu/GrBatchFontCache.h

Index: src/gpu/GrBatchFontCache.h
diff --git a/src/gpu/GrBatchFontCache.h b/src/gpu/GrBatchFontCache.h
index f60e2c8ebfbb1b204d7fd85b9c363ab37123d374..f1c56ac00cc7f72ee8a5ae48e2d728da2b797eb4 100644
--- a/src/gpu/GrBatchFontCache.h
+++ b/src/gpu/GrBatchFontCache.h
@@ -40,9 +40,6 @@ public:
         return glyph;
     }
 
-    // returns true if glyph (or glyph+padding for distance field)
-    // is too large to ever fit in texture atlas subregions (GrPlots)
-    bool glyphTooLargeForAtlas(GrGlyph*);
     // returns true if glyph successfully added to texture atlas, false otherwise
     bool addGlyphToAtlas(GrBatchTarget*, GrGlyph*, GrFontScaler*);