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/tests/RectangleTextureTest.cpp b/tests/RectangleTextureTest.cpp
index 2943c25..114207d 100644
--- a/tests/RectangleTextureTest.cpp
+++ b/tests/RectangleTextureTest.cpp
@@ -137,7 +137,7 @@
     }
 }
 
-DEF_GPUTEST_FOR_RENDERING_CONTEXTS(RectangleTexture, reporter, context, glContext) {    
+DEF_GPUTEST_FOR_RENDERING_CONTEXTS(RectangleTexture, reporter, context, glContext) {
     static const int kWidth = 13;
     static const int kHeight = 13;