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/SampleHT.cpp b/samplecode/SampleHT.cpp
index 1989c3a..d0cd3a5 100644
--- a/samplecode/SampleHT.cpp
+++ b/samplecode/SampleHT.cpp
@@ -57,7 +57,7 @@
         fInterp = nullptr;
         fTime = 0;
     }
-    
+
     void spawnAnimation(SkMSec now) {
         this->setTime(now);
 
@@ -122,14 +122,14 @@
         W = 640,
         H = 480,
     };
-    
+
     struct Rec {
         HTDrawable* fDrawable;
     };
     Rec fArray[N];
     sk_sp<SkDrawable> fRoot;
     SkMSec fTime;
-    
+
     HTView() {
         SkRandom rand;