Remove clamp

Former-commit-id: 2dcbdf421e60e21b7543077d790a6e70448766ab
Former-commit-id: 116dca312640c2039254d29de1b7870f701ff48e
Former-commit-id: c287b1f38c8a14cf1b69478fc949ee0d0c2df960

src/ImageProcessor/Common/Helpers/PixelOperations.cs

@@ -70,7 +70,7 @@ namespace ImageProcessor
             byte[] ramp = new byte[256];
             for (int x = 0; x < 256; ++x)
             {
-                byte val = (byte)(255f * SrgbToLinear(x / 255f)).Clamp(0, 255);
+                byte val = (255f * SrgbToLinear(x / 255f)).ToByte();
                 ramp[x] = val;
             }
 
@@ -89,7 +89,7 @@ namespace ImageProcessor
             byte[] ramp = new byte[256];
             for (int x = 0; x < 256; ++x)
             {
-                byte val = (byte)(255f * LinearToSrgb(x / 255f)).Clamp(0, 255);
+                byte val = (255f * LinearToSrgb(x / 255f)).ToByte();
                 ramp[x] = val;
             }