Avoid unnecessary float conversion

Author: ntkme

lib/sass/value/color/space/lab.rb

@@ -63,7 +63,7 @@ def convert(dest, lightness, a, b, alpha, # rubocop:disable Naming/MethodParamet
           private
 
           def _convert_f_to_x_or_z(component)
-            cubed = (component**3) + 0.0
+            cubed = component**3
             cubed > Utils::LAB_EPSILON ? cubed : ((116 * component) - 16) / Utils::LAB_KAPPA
           end
         end

lib/sass/value/color/space/oklab.rb

@@ -37,21 +37,15 @@ def convert(dest, lightness, a, b, alpha, # rubocop:disable Naming/MethodParamet
 
               LMS.convert(
                 dest,
-                ((
-                  (Conversions::OKLAB_TO_LMS[0] * lightness) +
-                  (Conversions::OKLAB_TO_LMS[1] * a) +
-                  (Conversions::OKLAB_TO_LMS[2] * b)
-                )**3) + 0.0,
-                ((
-                  (Conversions::OKLAB_TO_LMS[3] * lightness) +
-                  (Conversions::OKLAB_TO_LMS[4] * a) +
-                  (Conversions::OKLAB_TO_LMS[5] * b)
-                )**3) + 0.0,
-                ((
-                  (Conversions::OKLAB_TO_LMS[6] * lightness) +
-                  (Conversions::OKLAB_TO_LMS[7] * a) +
-                  (Conversions::OKLAB_TO_LMS[8] * b)
-                )**3) + 0.0,
+                ((Conversions::OKLAB_TO_LMS[0] * lightness) +
+                 (Conversions::OKLAB_TO_LMS[1] * a) +
+                 (Conversions::OKLAB_TO_LMS[2] * b))**3,
+                ((Conversions::OKLAB_TO_LMS[3] * lightness) +
+                 (Conversions::OKLAB_TO_LMS[4] * a) +
+                 (Conversions::OKLAB_TO_LMS[5] * b))**3,
+                ((Conversions::OKLAB_TO_LMS[6] * lightness) +
+                 (Conversions::OKLAB_TO_LMS[7] * a) +
+                 (Conversions::OKLAB_TO_LMS[8] * b))**3,
                 alpha,
                 missing_lightness:,
                 missing_chroma:,