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/samplecode/PerlinPatch.cpp b/samplecode/PerlinPatch.cpp
index ad2d6be..c5a0db8 100644
--- a/samplecode/PerlinPatch.cpp
+++ b/samplecode/PerlinPatch.cpp
@@ -129,7 +129,7 @@
         }
 
         SkPaint paint;
-        
+
         SkScalar texWidth = fTexScale * TexWidth;
         SkScalar texHeight = fTexScale * TexHeight;
         const SkPoint texCoords[SkPatchUtils::kNumCorners] = {
@@ -138,7 +138,7 @@
             { fTexX + texWidth, fTexY + texHeight},
             { fTexX - texWidth, fTexY + texHeight}}
         ;
-        
+
         SkAutoTUnref<SkXfermode> xfer(SkXfermode::Create(SkXfermode::kSrc_Mode));
 
         SkScalar scaleFreq = 2.0;
@@ -204,4 +204,3 @@
 };
 
 DEF_SAMPLE( return new PerlinPatchView(); )
-