swscale: Remove duplicated code

In this function, the exact same clamping happens both in the if and unconditionally.

libswscale/output.c

@@ -853,11 +853,6 @@ yuv2422_1_c_template(SwsContext *c, const int16_t *buf0,
                 V  = av_clip_uint8(V);
             }
 
-            Y1 = av_clip_uint8(Y1);
-            Y2 = av_clip_uint8(Y2);
-            U  = av_clip_uint8(U);
-            V  = av_clip_uint8(V);
-
             output_pixels(i * 4, Y1, U, Y2, V);
         }
     } else {
@@ -875,11 +870,6 @@ yuv2422_1_c_template(SwsContext *c, const int16_t *buf0,
                 V  = av_clip_uint8(V);
             }
 
-            Y1 = av_clip_uint8(Y1);
-            Y2 = av_clip_uint8(Y2);
-            U  = av_clip_uint8(U);
-            V  = av_clip_uint8(V);
-
             output_pixels(i * 4, Y1, U, Y2, V);
         }
     }