remove dead code from sampleapp, trim bad asserts

src/effects/SkMagnifierImageFilter.cpp

Index: src/effects/SkMagnifierImageFilter.cpp
diff --git a/src/effects/SkMagnifierImageFilter.cpp b/src/effects/SkMagnifierImageFilter.cpp
index 4b34755a85c31b0bd88ffb1657ea5c0f64b06491..eaac30cac3981d7a9eac72bf6c7773463e6ef2a0 100644
--- a/src/effects/SkMagnifierImageFilter.cpp
+++ b/src/effects/SkMagnifierImageFilter.cpp
@@ -291,10 +291,6 @@ void SkMagnifierImageFilter::flatten(SkWriteBuffer& buffer) const {
 bool SkMagnifierImageFilter::onFilterImage(Proxy*, const SkBitmap& src,
                                            const Context&, SkBitmap* dst,
                                            SkIPoint* offset) const {
-    SkASSERT(src.colorType() == kN32_SkColorType);
-    SkASSERT(fSrcRect.width() < src.width());
-    SkASSERT(fSrcRect.height() < src.height());
-
     if ((src.colorType() != kN32_SkColorType) ||
         (fSrcRect.width() >= src.width()) ||
         (fSrcRect.height() >= src.height())) {