Revert of Sk4f: add floor()

tests/SkNxTest.cpp

Index: tests/SkNxTest.cpp
diff --git a/tests/SkNxTest.cpp b/tests/SkNxTest.cpp
index e329e17bfad8e259c42a3abf26365f8104f30239..13e0a9f61fba5ba83327beaebcc52de1a464cd30 100644
--- a/tests/SkNxTest.cpp
+++ b/tests/SkNxTest.cpp
@@ -213,14 +213,6 @@
     REPORTER_ASSERT(r, fs.kth<1>() == 0.0f);
     REPORTER_ASSERT(r, fs.kth<2>() == 2.0f);
     REPORTER_ASSERT(r, fs.kth<3>() == 4.0f);
-}
-
-DEF_TEST(SkNx_floor, r) {
-    auto fs = Sk4f(0.4f, -0.4f, 0.6f, -0.6f).floor();
-    REPORTER_ASSERT(r, fs.kth<0>() ==  0.0f);
-    REPORTER_ASSERT(r, fs.kth<1>() == -1.0f);
-    REPORTER_ASSERT(r, fs.kth<2>() ==  0.0f);
-    REPORTER_ASSERT(r, fs.kth<3>() == -1.0f);
 }
 
 DEF_TEST(SkNx_shuffle, r) {