remove unused kLCD_MaskFormat

tests/AAClipTest.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkAAClip.h"
 #include "SkCanvas.h"
 #include "SkMask.h"
@@ skipping 16 matching lines @@
     switch (a.fFormat) {
         case SkMask::kBW_Format:
             wbytes = (wbytes + 7) >> 3;
             break;
         case SkMask::kA8_Format:
         case SkMask::k3D_Format:
             break;
         case SkMask::kLCD16_Format:
             wbytes <<= 1;
             break;
-        case SkMask::kLCD32_Format:
         case SkMask::kARGB32_Format:
             wbytes <<= 2;
             break;
         default:
             SkDEBUGFAIL("unknown mask format");
             return false;
     }
 
     const int h = a.fBounds.height();
     const char* aptr = (const char*)a.fImage;
@@ skipping 391 matching lines @@
     test_empty(reporter);
     test_path_bounds(reporter);
     test_irect(reporter);
     test_rgn(reporter);
     test_path_with_hole(reporter);
     test_regressions();
     test_nearly_integral(reporter);
     test_really_a_rect(reporter);
     test_crbug_422693(reporter);
 }