Remove "sanity"/"insane" to comply with Android's inclusive language guidance

See https://source.android.com/setup/contribute/respectful-code for reference

Bug: 162536543
Change-Id: Ia9c81c2251ac7bf4eef6d37799741612989fc9c0
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/307228
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Leon Scroggins <scroggo@google.com>
diff --git a/src/gpu/GrBlockAllocator.cpp b/src/gpu/GrBlockAllocator.cpp
index b1e674f..181c74d 100644
--- a/src/gpu/GrBlockAllocator.cpp
+++ b/src/gpu/GrBlockAllocator.cpp
@@ -109,7 +109,7 @@
 
         // The released block becomes the new scratch block (if it's bigger), or delete it
         if (this->scratchBlockSize() < block->fSize) {
-            SkASSERT(block != fHead.fPrev); // sanity check, shouldn't already be the scratch block
+            SkASSERT(block != fHead.fPrev); // shouldn't already be the scratch block
             if (fHead.fPrev) {
                 delete fHead.fPrev;
             }