base: Remove the string logging from CHECK().

net/http2/hpack/tools/hpack_example.cc

Index: net/http2/hpack/tools/hpack_example.cc
diff --git a/net/http2/hpack/tools/hpack_example.cc b/net/http2/hpack/tools/hpack_example.cc
index 72fd5810e991d0ef563e9c64cf2d3c9265a97489..c22d8e833ff71dc122955ff269457f0bc6f120ba 100644
--- a/net/http2/hpack/tools/hpack_example.cc
+++ b/net/http2/hpack/tools/hpack_example.cc
@@ -20,9 +20,11 @@ void HpackExampleToStringOrDie(StringPiece example, string* output) {
   while (!example.empty()) {
     const char c0 = example[0];
     if (isxdigit(c0)) {
-      CHECK_GT(example.size(), 1u) << "Truncated hex byte?";
+      // Truncated hex byte?
+      CHECK_GT(example.size(), 1u);
       const char c1 = example[1];
-      CHECK(isxdigit(c1)) << "Found half a byte?";
+      // Found half a byte?
+      CHECK(isxdigit(c1));
       *output += a2b_hex(example.substr(0, 2).as_string().c_str());
       example.remove_prefix(2);
       continue;
@@ -41,11 +43,10 @@ void HpackExampleToStringOrDie(StringPiece example, string* output) {
       example.remove_prefix(pos + 1);
       continue;
     }
-    CHECK(false) << "Can't parse byte " << static_cast<int>(c0) << " (0x"
-                 << std::hex << c0 << ")"
-                 << "\nExample: " << example;
+    CHECK(false);
   }
-  CHECK_LT(0u, output->size()) << "Example is empty.";
+  // Example is empty.
+  CHECK_LT(0u, output->size());
   return;
 }