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/SampleApp.cpp b/samplecode/SampleApp.cpp
index 3149711..e0d152d 100644
--- a/samplecode/SampleApp.cpp
+++ b/samplecode/SampleApp.cpp
@@ -852,7 +852,7 @@
         fDeviceType = kGPU_DeviceType;
     }
 #endif
-        
+
 #if DEFAULT_TO_GPU
     fDeviceType = kGPU_DeviceType;
 #endif
@@ -1792,13 +1792,13 @@
 void SampleWindow::setDeviceType(DeviceType type) {
     if (type == fDeviceType)
         return;
-    
+
     fDevManager->tearDownBackend(this);
-    
+
     fDeviceType = type;
-    
+
     fDevManager->setUpBackend(this, fMSAASampleCount);
-    
+
     this->updateTitle();
     this->inval(nullptr);
 }
@@ -1807,9 +1807,9 @@
     this->setColorType(ct, pt);
 
     fDevManager->tearDownBackend(this);
-    
+
     fDevManager->setUpBackend(this, fMSAASampleCount);
-    
+
     this->updateTitle();
     this->inval(nullptr);
 }