morphisms: remove 'return 0;' at end since it is now added by default

morphisms/angle.morphism-base

@@ -5,68 +5,42 @@
 morph_angle_as_degrees_to_turns_float ()
     Angle ~ Degrees ~ ℝ ~ native.Float32
 --> Angle ~ Turns ~ ℝ ~ native.Float32
-```
-    *dst = *src / 360.0;
-    return 0;
-```
+```*dst = *src / 360.0;```
 
 morph_angle_as_degrees_to_turns_double ()
     Angle ~ Degrees ~ ℝ ~ native.Float64
 --> Angle ~ Turns ~ ℝ ~ native.Float64
-```
-    *dst = *src / 360.0;
-    return 0;
-```
+```*dst = *src / 360.0;```
 
 
 morph_angle_as_turns_to_degrees_float ()
     Angle ~ Turns ~ ℝ ~ native.Float32
 --> Angle ~ Degrees ~ ℝ ~ native.Float32
-```
-    *dst = *src * 360.0;
-    return 0;
-```
+```*dst = *src * 360.0;```
 
 morph_angle_as_turns_to_degrees_double ()
     Angle ~ Turns ~ ℝ ~ native.Float64
 --> Angle ~ Degrees ~ ℝ ~ native.Float64
-```
-    *dst = *src * 360.0;
-    return 0;
-```
-
-
+```*dst = *src * 360.0;```
 
 
 morph_angle_as_radians_to_turns_float ()
     Angle ~ Radians ~ ℝ ~ native.Float32
 --> Angle ~ Turns ~ ℝ ~ native.Float32
-```
-    *dst = *src / PHI;
-    return 0;
-```
+```*dst = *src / PHI;```
 
 morph_angle_as_radians_to_turns_double ()
     Angle ~ Radians ~ ℝ ~ native.Float64
 --> Angle ~ Turns ~ ℝ ~ native.Float64
-```
-    *dst = *src / PHI;
-    return 0;
-```
+```*dst = *src / PHI;```
 
 
 morph_angle_as_turns_to_radians_float ()
     Angle ~ Turns ~ ℝ ~ native.Float32
 --> Angle ~ Radians ~ ℝ ~ native.Float32
-```
-    *dst = *src * PHI;
-    return 0;
-```
+```*dst = *src * PHI;```
 
 morph_angle_as_degrees_to_radians_double ()
     Angle ~ Turns ~ ℝ ~ native.Float64
 --> Angle ~ Radians ~ ℝ ~ native.Float64
-```
-    *dst = *src * PHI;
-    return 0;
-```
+```*dst = *src * PHI;```