Fix cpplint whitespace/comments issues

Change-Id: Iae286862c85fb8fd8901eae1204cd6d271d69496
diff --git a/build/Android.cpplint.mk b/build/Android.cpplint.mk
index eabaf31..adb87cb 100644
--- a/build/Android.cpplint.mk
+++ b/build/Android.cpplint.mk
@@ -15,7 +15,7 @@
 #
 
 ART_CPPLINT := art/tools/cpplint.py
-ART_CPPLINT_FILTER := --filter=-whitespace/comments,-whitespace/line_length,-build/include,-readability/function,-readability/streams,-readability/todo,-runtime/references,-runtime/sizeof,-runtime/threadsafe_fn,-runtime/printf
+ART_CPPLINT_FILTER := --filter=-whitespace/line_length,-build/include,-readability/function,-readability/streams,-readability/todo,-runtime/references,-runtime/sizeof,-runtime/threadsafe_fn,-runtime/printf
 ART_CPPLINT_SRC := $(shell find art -name *.h -o -name *$(ART_CPP_EXTENSION) | grep -v art/compiler/llvm/generated/)
 
 # "mm cpplint-art" to verify we aren't regressing