Remove version checks for _MSC_VER < 1800 (msvs2013).

src/core/SkBlitter_ARGB32.cpp

 /*
  * Copyright 2006 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 "SkCoreBlitters.h"
 #include "SkColorPriv.h"
 #include "SkShader.h"
@@ skipping 44 matching lines @@
 }
 
 const SkPixmap* SkARGB32_Blitter::justAnOpaqueColor(uint32_t* value) {
     if (255 == fSrcA) {
         *value = fPMColor;
         return &fDevice;
     }
     return nullptr;
 }
 
-#if defined _WIN32 && _MSC_VER >= 1300  // disable warning : local variable used without having been initialized
+#if defined _WIN32  // disable warning : local variable used without having been initialized
 #pragma warning ( push )
 #pragma warning ( disable : 4701 )
 #endif
 
 void SkARGB32_Blitter::blitH(int x, int y, int width) {
     SkASSERT(x >= 0 && y >= 0 && x + width <= fDevice.width());
 
     uint32_t* device = fDevice.writable_addr32(x, y);
     SkBlitRow::Color32(device, device, width, fPMColor);
 }
@@ skipping 169 matching lines @@
     uint32_t*   device = fDevice.writable_addr32(x, y);
     uint32_t    color = fPMColor;
     size_t      rowBytes = fDevice.rowBytes();
 
     while (--height >= 0) {
         SkBlitRow::Color32(device, device, width, color);
         device = (uint32_t*)((char*)device + rowBytes);
     }
 }
 
-#if defined _WIN32 && _MSC_VER >= 1300
+#if defined _WIN32
 #pragma warning ( pop )
 #endif
 
 ///////////////////////////////////////////////////////////////////////
 
 void SkARGB32_Black_Blitter::blitAntiH(int x, int y, const SkAlpha antialias[],
                                        const int16_t runs[]) {
     uint32_t*   device = fDevice.writable_addr32(x, y);
     SkPMColor   black = (SkPMColor)(SK_A32_MASK << SK_A32_SHIFT);
 
@@ skipping 410 matching lines @@
             SkBlitRow::Proc32 proc = (255 == alpha) ? fProc32 : fProc32Blend;
             do {
                 shaderContext->shadeSpan(x, y, span, 1);
                 proc(device, span, 1, alpha);
                 y += 1;
                 device = (uint32_t*)((char*)device + deviceRB);
             } while (--height > 0);
         }
     }
 }