avifstreamtest.cc: Remove three unused variables
Fix Clang -Wunused-const-variable warnings on 'VARINT_DEPTH_0',
'VARINT_DEPTH_1', and 'VARINT_DEPTH_2'.
diff --git a/tests/gtest/avifstreamtest.cc b/tests/gtest/avifstreamtest.cc
index e0a9a97..a1f4cc1 100644
--- a/tests/gtest/avifstreamtest.cc
+++ b/tests/gtest/avifstreamtest.cc
@@ -14,11 +14,6 @@
namespace avif {
namespace {
-// Taken from stream.c.
-static const int VARINT_DEPTH_0 = 7;
-static const int VARINT_DEPTH_1 = 3;
-static const int VARINT_DEPTH_2 = 18;
-
//------------------------------------------------------------------------------
TEST(StreamTest, Roundtrip) {
