Style bikeshed - remove extraneous whitespace

GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1842753002

Review URL: https://codereview.chromium.org/1842753002
diff --git a/gm/tablecolorfilter.cpp b/gm/tablecolorfilter.cpp
index c9ca474..a644bd1 100644
--- a/gm/tablecolorfilter.cpp
+++ b/gm/tablecolorfilter.cpp
@@ -209,12 +209,12 @@
     {
         fName.printf("colorcomposefilter_%s", suffix);
     }
-    
+
 protected:
     virtual SkString onShortName() {
         return fName;
     }
-    
+
     virtual SkISize onISize() {
         return SkISize::Make(790, 790);
     }
@@ -270,7 +270,7 @@
             canvas->translate(0, r.height() + spacer);
         }
     }
-    
+
 private:
     typedef GM INHERITED;
 };