Remove min texture size support

src/gpu/GrTextureProvider.cpp

Index: src/gpu/GrTextureProvider.cpp
diff --git a/src/gpu/GrTextureProvider.cpp b/src/gpu/GrTextureProvider.cpp
index 26384abbd2ad5bcd93ca65203631035a16d18334..cb652f7a7fd8c2e27b46fb7a4c802a4031b900e1 100644
--- a/src/gpu/GrTextureProvider.cpp
+++ b/src/gpu/GrTextureProvider.cpp
@@ -70,10 +70,10 @@ GrTexture* GrTextureProvider::refScratchTexture(const GrSurfaceDesc& inDesc,
     if (fGpu->caps()->reuseScratchTextures() || (desc->fFlags & kRenderTarget_GrSurfaceFlag)) {
         if (!(kExact_ScratchTextureFlag & flags)) {
             // bin by pow2 with a reasonable min
-            const int minSize = SkTMin(16, fGpu->caps()->minTextureSize());
+            const int kMinSize = 16;
             GrSurfaceDesc* wdesc = desc.writable();
-            wdesc->fWidth  = SkTMax(minSize, GrNextPow2(desc->fWidth));
-            wdesc->fHeight = SkTMax(minSize, GrNextPow2(desc->fHeight));
+            wdesc->fWidth  = SkTMax(kMinSize, GrNextPow2(desc->fWidth));
+            wdesc->fHeight = SkTMax(kMinSize, GrNextPow2(desc->fHeight));
         }
 
         GrScratchKey key;