Simplify common case of linear filtering with no mips

Change-Id: I08b4a7bc088705b93a0aa680f6733d09c7ad23dd
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/354221
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Mike Reed <reed@google.com>
diff --git a/samplecode/SamplePatch.cpp b/samplecode/SamplePatch.cpp
index cca913d..98dde31 100644
--- a/samplecode/SamplePatch.cpp
+++ b/samplecode/SamplePatch.cpp
@@ -34,8 +34,7 @@
     SkBitmap bm;
     decode_file(GetResourceAsData("images/dog.jpg"), &bm);
     *size = SkIPoint{bm.width(), bm.height()};
-    return bm.makeShader(SkSamplingOptions(SkFilterMode::kLinear,
-                                           SkMipmapMode::kNone));
+    return bm.makeShader(SkSamplingOptions(SkFilterMode::kLinear));
 }
 
 static sk_sp<SkShader> make_shader1(const SkIPoint& size) {