Fix build warning: reference cannot be bound to dereferenced null pointer in well-defined C++ code;…

src/core/SkImageFilter.cpp

Index: src/core/SkImageFilter.cpp
diff --git a/src/core/SkImageFilter.cpp b/src/core/SkImageFilter.cpp
index d4eaf65c5fac2ef6582b5ad15a3633e3e05c1e75..a930cfb10ec8601787b27af7a878d7b7b979485b 100644
--- a/src/core/SkImageFilter.cpp
+++ b/src/core/SkImageFilter.cpp
@@ -197,7 +197,6 @@ bool SkImageFilter::filterImage(Proxy* proxy, const SkBitmap& src,
 
 bool SkImageFilter::filterBounds(const SkIRect& src, const SkMatrix& ctm,
                                  SkIRect* dst) const {
-    SkASSERT(&src);
     SkASSERT(dst);
     return this->onFilterBounds(src, ctm, dst);
 }