Support Float32 output from SkColorSpaceXform

src/core/SkPM4fPriv.h

Index: src/core/SkPM4fPriv.h
diff --git a/src/core/SkPM4fPriv.h b/src/core/SkPM4fPriv.h
index 89a0caeb70ce0ff0994efbe3faf77f7f4a823268..f2d2557d3a780e57a84c1d86d4789dcf0cb861f9 100644
--- a/src/core/SkPM4fPriv.h
+++ b/src/core/SkPM4fPriv.h
@@ -55,20 +55,4 @@ static inline Sk4f Sk4f_from_SkColor(SkColor color) {
     return swizzle_rb(Sk4f_fromS32(color));
 }
 
-static inline void assert_unit(float x) {
-    SkASSERT(0 <= x && x <= 1);
-}
-
-static inline float exact_srgb_to_linear(float srgb) {
-    assert_unit(srgb);
-    float linear;
-    if (srgb <= 0.04045) {
-        linear = srgb / 12.92f;
-    } else {
-        linear = powf((srgb + 0.055f) / 1.055f, 2.4f);
-    }
-    assert_unit(linear);
-    return linear;
-}
-
 #endif