remove dead code from sampleapp, trim bad asserts

src/effects/SkMagnifierImageFilter.cpp

 /*
  * Copyright 2012 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 "SkBitmap.h"
 #include "SkMagnifierImageFilter.h"
 #include "SkColorPriv.h"
@@ skipping 273 matching lines @@
 
 void SkMagnifierImageFilter::flatten(SkWriteBuffer& buffer) const {
     this->INHERITED::flatten(buffer);
     buffer.writeRect(fSrcRect);
     buffer.writeScalar(fInset);
 }
 
 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())) {
       return false;
     }
 
     SkAutoLockPixels alp(src);
     SkASSERT(src.getPixels());
     if (!src.getPixels() || src.width() <= 0 || src.height() <= 0) {
       return false;
@@ skipping 52 matching lines @@
 
 #ifndef SK_IGNORE_TO_STRING
 void SkMagnifierImageFilter::toString(SkString* str) const {
     str->appendf("SkMagnifierImageFilter: (");
     str->appendf("src: (%f,%f,%f,%f) ",
                  fSrcRect.fLeft, fSrcRect.fTop, fSrcRect.fRight, fSrcRect.fBottom);
     str->appendf("inset: %f", fInset);
     str->append(")");
 }
 #endif