remove shadeSpan16 from shader

src/opts/opts_check_x86.cpp

 /*
  * Copyright 2009 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBitmapFilter_opts_SSE2.h"
 #include "SkBitmapProcState_opts_SSE2.h"
 #include "SkBitmapProcState_opts_SSSE3.h"
@@ skipping 129 matching lines @@
             fSampleProc32 = S32_alpha_D32_filter_DX_SSSE3;
         } else {
             fSampleProc32 = S32_alpha_D32_filter_DX_SSE2;
         }
     } else if (fSampleProc32 == S32_alpha_D32_filter_DXDY) {
         if (ssse3) {
             fSampleProc32 = S32_alpha_D32_filter_DXDY_SSSE3;
         }
     }
 
-    /* Check fSampleProc16 */
-    if (fSampleProc16 == S32_D16_filter_DX) {
-        if (ssse3) {
-            fSampleProc16 = S32_D16_filter_DX_SSSE3;
-        } else {
-            fSampleProc16 = S32_D16_filter_DX_SSE2;
-        }
-    } else if (ssse3 && fSampleProc16 == S32_D16_filter_DXDY) {
-        fSampleProc16 = S32_D16_filter_DXDY_SSSE3;
-    }
-
     /* Check fMatrixProc */
     if (fMatrixProc == ClampX_ClampY_filter_scale) {
         fMatrixProc = ClampX_ClampY_filter_scale_SSE2;
     } else if (fMatrixProc == ClampX_ClampY_nofilter_scale) {
         fMatrixProc = ClampX_ClampY_nofilter_scale_SSE2;
     } else if (fMatrixProc == ClampX_ClampY_filter_affine) {
         fMatrixProc = ClampX_ClampY_filter_affine_SSE2;
     } else if (fMatrixProc == ClampX_ClampY_nofilter_affine) {
         fMatrixProc = ClampX_ClampY_nofilter_affine_SSE2;
     }
@@ skipping 74 matching lines @@
         }
     } else {
         return nullptr;
     }
 
 }
 
 SkBlitMask::RowProc SkBlitMask::PlatformRowProcs(SkColorType, SkMask::Format, RowFlags) {
     return nullptr;
 }